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252085580240 = 24513242389981
BaseRepresentation
bin1110101011000101111…
…0001011000111010000
3220002200021111022100212
43222301132023013100
513112232402031430
6311450112503252
724132626035424
oct3526136130720
9802607438325
10252085580240
11979aa81358a
1240a32b4ab28
131aa0519b540
14c2b57c6b84
156855e83b95
hex3ab178b1d0

252085580240 has 40 divisors (see below), whose sum is σ = 631183513128. Its totient is φ = 93077752320.

The previous prime is 252085580239. The next prime is 252085580273. The reversal of 252085580240 is 42085580252.

252085580240 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 4 ways, for example, as 17201896336 + 234883683904 = 131156^2 + 484648^2 .

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

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 121193951 + ... + 121196030.

Almost surely, 2252085580240 is an apocalyptic number.

252085580240 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

252085580240 is an abundant number, since it is smaller than the sum of its proper divisors (379097932888).

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

252085580240 is a wasteful number, since it uses less digits than its factorization.

252085580240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 242390007 (or 242390001 counting only the distinct ones).

The product of its (nonzero) digits is 256000, while the sum is 41.

The spelling of 252085580240 in words is "two hundred fifty-two billion, eighty-five million, five hundred eighty thousand, two hundred forty".

Divisors: 1 2 4 5 8 10 13 16 20 26 40 52 65 80 104 130 208 260 520 1040 242389981 484779962 969559924 1211949905 1939119848 2423899810 3151069753 3878239696 4847799620 6302139506 9695599240 12604279012 15755348765 19391198480 25208558024 31510697530 50417116048 63021395060 126042790120 252085580240