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257230052575 = 5238461267523
BaseRepresentation
bin1110111110010000011…
…0110001110011011111
3220120221210201120201021
43233210012301303133
513203301343140300
6314100404425011
724404254241146
oct3574406616337
9816853646637
10257230052575
119a0aa727811
1241a299a8167
131b344c42002
14c642b3475d
156a57926d1a
hex3be41b1cdf

257230052575 has 12 divisors (see below), whose sum is σ = 318974750728. Its totient is φ = 205777922400.

The previous prime is 257230052533. The next prime is 257230052593. The reversal of 257230052575 is 575250032752.

It is a happy number.

It is a de Polignac number, because none of the positive numbers 2k-257230052575 is a prime.

It is a Duffinian number.

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 11 ways as a sum of consecutive naturals, for example, 827764 + ... + 1095286.

Almost surely, 2257230052575 is an apocalyptic number.

257230052575 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

257230052575 is a deficient number, since it is larger than the sum of its proper divisors (61744698153).

257230052575 is a wasteful number, since it uses less digits than its factorization.

257230052575 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 305994 (or 305989 counting only the distinct ones).

The product of its (nonzero) digits is 735000, while the sum is 43.

The spelling of 257230052575 in words is "two hundred fifty-seven billion, two hundred thirty million, fifty-two thousand, five hundred seventy-five".

Divisors: 1 5 25 38461 192305 267523 961525 1337615 6688075 10289202103 51446010515 257230052575