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57756139999 = 415713893707
BaseRepresentation
bin110101110010100010…
…001100000111011111
312112002010100220111021
4311302202030013133
51421241032434444
642311030305011
74113152042545
oct656242140737
9175063326437
1057756139999
1122548920908
12b23a4b8167
1355a591008c
142b1c879d95
151780770584
hexd7288c1df

57756139999 has 4 divisors (see below), whose sum is σ = 57770037864. Its totient is φ = 57742242136.

The previous prime is 57756139967. The next prime is 57756140011. The reversal of 57756139999 is 99993165775.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 57756139999 - 25 = 57756139967 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 (57756139699) by changing a digit.

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, 6942697 + ... + 6951010.

It is an arithmetic number, because the mean of its divisors is an integer number (14442509466).

Almost surely, 257756139999 is an apocalyptic number.

57756139999 is a deficient number, since it is larger than the sum of its proper divisors (13897865).

57756139999 is a wasteful number, since it uses less digits than its factorization.

57756139999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13897864.

The product of its digits is 144670050, while the sum is 70.

The spelling of 57756139999 in words is "fifty-seven billion, seven hundred fifty-six million, one hundred thirty-nine thousand, nine hundred ninety-nine".

Divisors: 1 4157 13893707 57756139999