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57431333677 = 3113763134609
BaseRepresentation
bin110101011111001011…
…001001101100101101
312111020111012000222111
4311133023021230231
51420104410134202
642214504444021
74102126165414
oct653713115455
9174214160874
1057431333677
11223a1544033
12b169779611
1355535382a3
142acb68a47b
151761eb16d7
hexd5f2c9b2d

57431333677 has 8 divisors (see below), whose sum is σ = 59288705280. Its totient is φ = 55574258880.

The previous prime is 57431333651. The next prime is 57431333689. The reversal of 57431333677 is 77633313475.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-57431333677 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 57431333677.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57431333077) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 359349 + ... + 493957.

It is an arithmetic number, because the mean of its divisors is an integer number (7411088160).

Almost surely, 257431333677 is an apocalyptic number.

It is an amenable number.

57431333677 is a deficient number, since it is larger than the sum of its proper divisors (1857371603).

57431333677 is a wasteful number, since it uses less digits than its factorization.

57431333677 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 148403.

The product of its digits is 3333960, while the sum is 49.

The spelling of 57431333677 in words is "fifty-seven billion, four hundred thirty-one million, three hundred thirty-three thousand, six hundred seventy-seven".

Divisors: 1 31 13763 134609 426653 4172879 1852623667 57431333677