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57327978037 = 115211634367
BaseRepresentation
bin110101011001000000…
…111000011000110101
312110222021201000200211
4311121000320120311
51414401430244122
642200333305421
74066432526131
oct653100703065
9173867630624
1057327978037
1122349170450
12b13b035271
135537cbb2c5
142abba643c1
151757d97877
hexd59038635

57327978037 has 4 divisors (see below), whose sum is σ = 62539612416. Its totient is φ = 52116343660.

The previous prime is 57327978023. The next prime is 57327978053. The reversal of 57327978037 is 73087972375.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 57327978037 - 219 = 57327453749 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57327178037) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2605817173 + ... + 2605817194.

It is an arithmetic number, because the mean of its divisors is an integer number (15634903104).

Almost surely, 257327978037 is an apocalyptic number.

It is an amenable number.

57327978037 is a deficient number, since it is larger than the sum of its proper divisors (5211634379).

57327978037 is a wasteful number, since it uses less digits than its factorization.

57327978037 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5211634378.

The product of its (nonzero) digits is 15558480, while the sum is 58.

The spelling of 57327978037 in words is "fifty-seven billion, three hundred twenty-seven million, nine hundred seventy-eight thousand, thirty-seven".

Divisors: 1 11 5211634367 57327978037