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57727089789 = 397198374879
BaseRepresentation
bin110101110000110011…
…010111110001111101
312112000002201000002120
4311300303113301331
51421211113333124
642304111513153
74112350111215
oct656063276175
9175002630076
1057727089789
1122533489a76
12b2308287b9
13559c8ab4c5
142b18a77245
15177ce32d79
hexd70cd7c7d

57727089789 has 8 divisors (see below), whose sum is σ = 77762952960. Its totient is φ = 38087976576.

The previous prime is 57727089781. The next prime is 57727089793. The reversal of 57727089789 is 98798072775.

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

It is not a de Polignac number, because 57727089789 - 23 = 57727089781 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57727089781) 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, 99187149 + ... + 99187730.

It is an arithmetic number, because the mean of its divisors is an integer number (9720369120).

Almost surely, 257727089789 is an apocalyptic number.

It is an amenable number.

57727089789 is a deficient number, since it is larger than the sum of its proper divisors (20035863171).

57727089789 is a wasteful number, since it uses less digits than its factorization.

57727089789 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 198374979.

The product of its (nonzero) digits is 124467840, while the sum is 69.

The spelling of 57727089789 in words is "fifty-seven billion, seven hundred twenty-seven million, eighty-nine thousand, seven hundred eighty-nine".

Divisors: 1 3 97 291 198374879 595124637 19242363263 57727089789