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28452125824380 = 22335317166211741
BaseRepresentation
bin1100111100000100001101…
…10110100101010101111100
310201201222220120100111222000
412132002012312211111330
512212124423202340010
6140302420503422300
75664412126106466
oct636020666452574
9121658816314860
1028452125824380
11907a52a311a75
123236267454990
1312b504081629b
1470513987d136
15345189a037c0
hex19e086da557c

28452125824380 has 96 divisors (see below), whose sum is σ = 88796961046080. Its totient is φ = 7563299016960.

The previous prime is 28452125824333. The next prime is 28452125824417. The reversal of 28452125824380 is 8342852125482.

28452125824380 is a `hidden beast` number, since 2 + 8 + 4 + 5 + 2 + 1 + 258 + 2 + 4 + 380 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 82934691 + ... + 83277050.

It is an arithmetic number, because the mean of its divisors is an integer number (924968344230).

Almost surely, 228452125824380 is an apocalyptic number.

28452125824380 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

28452125824380 is an abundant number, since it is smaller than the sum of its proper divisors (60344835221700).

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

28452125824380 is a wasteful number, since it uses less digits than its factorization.

28452125824380 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 166212076 (or 166212068 counting only the distinct ones).

The product of its (nonzero) digits is 9830400, while the sum is 54.

The spelling of 28452125824380 in words is "twenty-eight trillion, four hundred fifty-two billion, one hundred twenty-five million, eight hundred twenty-four thousand, three hundred eighty".

Divisors: 1 2 3 4 5 6 9 10 12 15 18 20 27 30 36 45 54 60 90 108 135 180 270 317 540 634 951 1268 1585 1902 2853 3170 3804 4755 5706 6340 8559 9510 11412 14265 17118 19020 28530 34236 42795 57060 85590 171180 166211741 332423482 498635223 664846964 831058705 997270446 1495905669 1662117410 1994540892 2493176115 2991811338 3324234820 4487717007 4986352230 5983622676 7479528345 8975434014 9972704460 14959056690 17950868028 22438585035 29918113380 44877170070 52689121897 89754340140 105378243794 158067365691 210756487588 263445609485 316134731382 474202097073 526891218970 632269462764 790336828455 948404194146 1053782437940 1422606291219 1580673656910 1896808388292 2371010485365 2845212582438 3161347313820 4742020970730 5690425164876 7113031456095 9484041941460 14226062912190 28452125824380