Search a number
-
+
23031033122020 = 22571177319346981
BaseRepresentation
bin1010011110010010101001…
…00011000100110011100100
310000112202010022000201110111
411033021110203010303210
511004320023434401040
6120552151025102404
74564636320326260
oct517112443046344
9100482108021414
1023031033122020
11737a4518636a0
1226bb69a487a04
13cb0a81241c21
145989ca88d0a0
1529e153c78dea
hex14f2548c4ce4

23031033122020 has 96 divisors (see below), whose sum is σ = 60377442322176. Its totient is φ = 7169216908800.

The previous prime is 23031033121973. The next prime is 23031033122021. The reversal of 23031033122020 is 2022133013032.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a junction number, because it is equal to n+sod(n) for n = 23031033121982 and 23031033122000.

It is not an unprimeable number, because it can be changed into a prime (23031033122021) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 8483071 + ... + 10863910.

It is an arithmetic number, because the mean of its divisors is an integer number (628931690856).

Almost surely, 223031033122020 is an apocalyptic number.

23031033122020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23031033122020 is an abundant number, since it is smaller than the sum of its proper divisors (37346409200156).

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

23031033122020 is a wasteful number, since it uses less digits than its factorization.

23031033122020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19347781 (or 19347779 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 22.

Adding to 23031033122020 its reverse (2022133013032), we get a palindrome (25053166135052).

The spelling of 23031033122020 in words is "twenty-three trillion, thirty-one billion, thirty-three million, one hundred twenty-two thousand, twenty".

Divisors: 1 2 4 5 7 10 11 14 20 22 28 35 44 55 70 77 110 140 154 220 308 385 770 773 1540 1546 3092 3865 5411 7730 8503 10822 15460 17006 21644 27055 34012 42515 54110 59521 85030 108220 119042 170060 238084 297605 595210 1190420 19346981 38693962 77387924 96734905 135428867 193469810 212816791 270857734 386939620 425633582 541715468 677144335 851267164 1064083955 1354288670 1489717537 2128167910 2708577340 2979435074 4256335820 5958870148 7448587685 14897175370 14955216313 29794350740 29910432626 59820865252 74776081565 104686514191 149552163130 164507379443 209373028382 299104326260 329014758886 418746056764 523432570955 658029517772 822536897215 1046865141910 1151551656101 1645073794430 2093730283820 2303103312202 3290147588860 4606206624404 5757758280505 11515516561010 23031033122020