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22131411114400 = 255278161484259
BaseRepresentation
bin1010000100000110111101…
…11001011101100110100000
32220100202001002111122021221
411002003132321131212200
510400100112221130100
6115023010243224424
74442640666410320
oct502033671354640
986322032448257
1022131411114400
1170629736780a5
122595270978114
13c46ca1b90263
1456724777d280
15285a4ea1501a
hex1420dee5d9a0

22131411114400 has 144 divisors (see below), whose sum is σ = 61754330594880. Its totient is φ = 7586966937600.

The previous prime is 22131411114361. The next prime is 22131411114403. The reversal of 22131411114400 is 441111413122.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is not an unprimeable number, because it can be changed into a prime (22131411114403) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 45459471 + ... + 45943729.

It is an arithmetic number, because the mean of its divisors is an integer number (428849518020).

Almost surely, 222131411114400 is an apocalyptic number.

22131411114400 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22131411114400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (30877165297440).

22131411114400 is an abundant number, since it is smaller than the sum of its proper divisors (39622919480480).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

22131411114400 is a wasteful number, since it uses less digits than its factorization.

22131411114400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 492447 (or 492434 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 25.

Adding to 22131411114400 its reverse (441111413122), we get a palindrome (22572522527522).

The spelling of 22131411114400 in words is "twenty-two trillion, one hundred thirty-one billion, four hundred eleven million, one hundred fourteen thousand, four hundred".

Divisors: 1 2 4 5 7 8 10 14 16 20 25 28 32 35 40 50 56 70 80 100 112 140 160 175 200 224 280 350 400 560 700 800 1120 1400 2800 5600 8161 16322 32644 40805 57127 65288 81610 114254 130576 163220 204025 228508 261152 285635 326440 408050 457016 484259 571270 652880 816100 914032 968518 1142540 1305760 1428175 1632200 1828064 1937036 2285080 2421295 2856350 3264400 3389813 3874072 4570160 4842590 5712700 6528800 6779626 7748144 9140320 9685180 11425400 12106475 13559252 15496288 16949065 19370360 22850800 24212950 27118504 33898130 38740720 45701600 48425900 54237008 67796260 77481440 84745325 96851800 108474016 135592520 169490650 193703600 271185040 338981300 387407200 542370080 677962600 1355925200 2711850400 3952037699 7904075398 15808150796 19760188495 27664263893 31616301592 39520376990 55328527786 63232603184 79040753980 98800942475 110657055572 126465206368 138321319465 158081507960 197601884950 221314111144 276642638930 316163015920 395203769900 442628222288 553285277860 632326031840 691606597325 790407539800 885256444576 1106570555720 1383213194650 1580815079600 2213141111440 2766426389300 3161630159200 4426282222880 5532852778600 11065705557200 22131411114400