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57038274440 = 2357203708123
BaseRepresentation
bin110101000111101111…
…101111111110001000
312110020002120120001222
4311013233233332020
51413303244240230
642111504101212
74056314222210
oct650757577610
9173202516058
1057038274440
112220a689894
12b07a004808
1354bcc86c64
142a913b1240
15173c71e6e5
hexd47beff88

57038274440 has 32 divisors (see below), whose sum is σ = 146669849280. Its totient is φ = 19555979712.

The previous prime is 57038274373. The next prime is 57038274473. The reversal of 57038274440 is 4447283075.

It is a Smith number, since the sum of its digits (44) coincides with the sum of the digits of its prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 57038274391 and 57038274400.

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 7 ways as a sum of consecutive naturals, for example, 101853782 + ... + 101854341.

It is an arithmetic number, because the mean of its divisors is an integer number (4583432790).

Almost surely, 257038274440 is an apocalyptic number.

It is an amenable number.

57038274440 is an abundant number, since it is smaller than the sum of its proper divisors (89631574840).

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

57038274440 is a wasteful number, since it uses less digits than its factorization.

57038274440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 203708141 (or 203708137 counting only the distinct ones).

The product of its (nonzero) digits is 752640, while the sum is 44.

The spelling of 57038274440 in words is "fifty-seven billion, thirty-eight million, two hundred seventy-four thousand, four hundred forty".

Divisors: 1 2 4 5 7 8 10 14 20 28 35 40 56 70 140 280 203708123 407416246 814832492 1018540615 1425956861 1629664984 2037081230 2851913722 4074162460 5703827444 7129784305 8148324920 11407654888 14259568610 28519137220 57038274440