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57682537697 = 99901577397
BaseRepresentation
bin110101101110001001…
…011010110011100001
312111212222212112010002
4311232021122303201
51421113212201242
642255440545345
74111266323561
oct655611326341
9174788775102
1057682537697
112251031a364
12b219922255
1355935aca15
142b12b9ada1
151779082432
hexd6e25ace1

57682537697 has 4 divisors (see below), whose sum is σ = 57683214996. Its totient is φ = 57681860400.

The previous prime is 57682537687. The next prime is 57682537699. The reversal of 57682537697 is 79673528675.

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

It can be written as a sum of positive squares in 2 ways, for example, as 46261127056 + 11421410641 = 215084^2 + 106871^2 .

It is a cyclic number.

It is not a de Polignac number, because 57682537697 - 220 = 57681489121 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (57682537699) 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, 188798 + ... + 388599.

It is an arithmetic number, because the mean of its divisors is an integer number (14420803749).

Almost surely, 257682537697 is an apocalyptic number.

It is an amenable number.

57682537697 is a deficient number, since it is larger than the sum of its proper divisors (677299).

57682537697 is an equidigital number, since it uses as much as digits as its factorization.

57682537697 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 677298.

The product of its digits is 133358400, while the sum is 65.

The spelling of 57682537697 in words is "fifty-seven billion, six hundred eighty-two million, five hundred thirty-seven thousand, six hundred ninety-seven".

Divisors: 1 99901 577397 57682537697