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252683889680 = 2455359595257
BaseRepresentation
bin1110101101010100100…
…0100010110000010000
3220011012222022120121202
43223111020202300100
513114444033432210
6312025324410332
724153512424005
oct3532510426020
9804188276552
10252683889680
11981875172a2
1240b7b3a69a8
131aa9c1247b1
14c33104d8ac
15688d76a9a5
hex3ad5222c10

252683889680 has 40 divisors (see below), whose sum is σ = 598574771352. Its totient is φ = 99166505984.

The previous prime is 252683889677. The next prime is 252683889769. The reversal of 252683889680 is 86988386252.

It can be written as a sum of positive squares in 4 ways, for example, as 16456784656 + 236227105024 = 128284^2 + 486032^2 .

It is a tau number, because it is divible by the number of its divisors (40).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 29793389 + ... + 29801868.

Almost surely, 2252683889680 is an apocalyptic number.

252683889680 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

252683889680 is an abundant number, since it is smaller than the sum of its proper divisors (345890881672).

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

252683889680 is a wasteful number, since it uses less digits than its factorization.

252683889680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59595323 (or 59595317 counting only the distinct ones).

The product of its (nonzero) digits is 79626240, while the sum is 65.

The spelling of 252683889680 in words is "two hundred fifty-two billion, six hundred eighty-three million, eight hundred eighty-nine thousand, six hundred eighty".

Divisors: 1 2 4 5 8 10 16 20 40 53 80 106 212 265 424 530 848 1060 2120 4240 59595257 119190514 238381028 297976285 476762056 595952570 953524112 1191905140 2383810280 3158548621 4767620560 6317097242 12634194484 15792743105 25268388968 31585486210 50536777936 63170972420 126341944840 252683889680