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252322230400 = 2752531487749
BaseRepresentation
bin1110101011111110010…
…0111011000010000000
3220010021202210101100121
43222333210323002000
513113223442333100
6311525405030024
724141531366532
oct3527744730200
9803252711317
10252322230400
1198011359329
1240a9a255314
131aa42218716
14c2d8dc9852
15686bb2c51a
hex3abf93b080

252322230400 has 96 divisors (see below), whose sum is σ = 635075842500. Its totient is φ = 99024506880.

The previous prime is 252322230389. The next prime is 252322230437. The reversal of 252322230400 is 4032223252.

It is a happy number.

252322230400 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 6 ways, for example, as 199851914304 + 52470316096 = 447048^2 + 229064^2 .

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 574275 + ... + 913474.

Almost surely, 2252322230400 is an apocalyptic number.

252322230400 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

252322230400 is an abundant number, since it is smaller than the sum of its proper divisors (382753612100).

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

252322230400 is a wasteful number, since it uses less digits than its factorization.

252322230400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1487826 (or 1487809 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 25.

Adding to 252322230400 its reverse (4032223252), we get a palindrome (256354453652).

The spelling of 252322230400 in words is "two hundred fifty-two billion, three hundred twenty-two million, two hundred thirty thousand, four hundred".

Divisors: 1 2 4 5 8 10 16 20 25 32 40 50 53 64 80 100 106 128 160 200 212 265 320 400 424 530 640 800 848 1060 1325 1600 1696 2120 2650 3200 3392 4240 5300 6784 8480 10600 16960 21200 33920 42400 84800 169600 1487749 2975498 5950996 7438745 11901992 14877490 23803984 29754980 37193725 47607968 59509960 74387450 78850697 95215936 119019920 148774900 157701394 190431872 238039840 297549800 315402788 394253485 476079680 595099600 630805576 788506970 952159360 1190199200 1261611152 1577013940 1971267425 2380398400 2523222304 3154027880 3942534850 4760796800 5046444608 6308055760 7885069700 10092889216 12616111520 15770139400 25232223040 31540278800 50464446080 63080557600 126161115200 252322230400