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57720064126 = 2131849218887
BaseRepresentation
bin110101110000011000…
…100100100001111110
312111222121111001200211
4311300120210201332
51421202314023001
642303301143034
74112233310224
oct656030444176
9174877431624
1057720064126
112252a52053a
12b22a3baa7a
13559b2bb6ca
142b17b68b14
15177c4e6351
hexd7062487e

57720064126 has 8 divisors (see below), whose sum is σ = 86581148400. Its totient is φ = 28859681328.

The previous prime is 57720064091. The next prime is 57720064133. The reversal of 57720064126 is 62146002775.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 154255 + ... + 373141.

It is an arithmetic number, because the mean of its divisors is an integer number (10822643550).

Almost surely, 257720064126 is an apocalyptic number.

57720064126 is a deficient number, since it is larger than the sum of its proper divisors (28861084274).

57720064126 is a wasteful number, since it uses less digits than its factorization.

57720064126 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 350738.

The product of its (nonzero) digits is 141120, while the sum is 40.

The spelling of 57720064126 in words is "fifty-seven billion, seven hundred twenty million, sixty-four thousand, one hundred twenty-six".

Divisors: 1 2 131849 218887 263698 437774 28860032063 57720064126