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57132328906 = 2181157824113
BaseRepresentation
bin110101001101010110…
…100010011111001010
312110110122120000112201
4311031112202133022
51414001334011111
642125104030414
74061535532402
oct651526423712
9173418500481
1057132328906
112225878a354
12b0a560240a
1355065c84a3
142a9da95802
151745aec6c1
hexd4d5a27ca

57132328906 has 8 divisors (see below), whose sum is σ = 86171966244. Its totient is φ = 28408340160.

The previous prime is 57132328879. The next prime is 57132328921. The reversal of 57132328906 is 60982323175.

It can be written as a sum of positive squares in 2 ways, for example, as 54361254025 + 2771074881 = 233155^2 + 52641^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-3 number, since 3×571323289063 (a number of 33 digits) contains 333 as substring.

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 3 ways as a sum of consecutive naturals, for example, 78911695 + ... + 78912418.

Almost surely, 257132328906 is an apocalyptic number.

57132328906 is a deficient number, since it is larger than the sum of its proper divisors (29039637338).

57132328906 is a wasteful number, since it uses less digits than its factorization.

57132328906 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 157824296.

The product of its (nonzero) digits is 544320, while the sum is 46.

The spelling of 57132328906 in words is "fifty-seven billion, one hundred thirty-two million, three hundred twenty-eight thousand, nine hundred six".

Divisors: 1 2 181 362 157824113 315648226 28566164453 57132328906