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93977185057 = 713425312151
BaseRepresentation
bin101011110000101111…
…0100000101100100001
322222120102122122100121
41113201132200230201
53014431124410212
6111101133120241
76534561615160
oct1274136405441
9288512578317
1093977185057
1136945742098
1216268929081
138b28ab6212
1447971d33d7
1526a05e6d07
hex15e17a0b21

93977185057 has 4 divisors (see below), whose sum is σ = 107402497216. Its totient is φ = 80551872900.

The previous prime is 93977185013. The next prime is 93977185073. The reversal of 93977185057 is 75058177939.

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 93977185057 - 219 = 93976660769 is a prime.

It is a super-2 number, since 2×939771850572 (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 93977184986 and 93977185004.

It is not an unprimeable number, because it can be changed into a prime (93977185457) by changing a digit.

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, 6712656069 + ... + 6712656082.

It is an arithmetic number, because the mean of its divisors is an integer number (26850624304).

Almost surely, 293977185057 is an apocalyptic number.

It is an amenable number.

93977185057 is a deficient number, since it is larger than the sum of its proper divisors (13425312159).

93977185057 is a wasteful number, since it uses less digits than its factorization.

93977185057 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13425312158.

The product of its (nonzero) digits is 16669800, while the sum is 61.

The spelling of 93977185057 in words is "ninety-three billion, nine hundred seventy-seven million, one hundred eighty-five thousand, fifty-seven".

Divisors: 1 7 13425312151 93977185057