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57420619876 = 221198132
BaseRepresentation
bin110101011110100010…
…010010000001100100
312111012202000201102001
4311132202102001210
51420044134314001
642213443055044
74101636134014
oct653642220144
9174182021361
1057420619876
1122396496654
12b166071484
135551256869
142aca09bc44
151761097001
hexd5e892064

57420619876 has 9 divisors (see below), whose sum is σ = 100486923481. Its totient is φ = 28710070312.

The previous prime is 57420619871. The next prime is 57420619897. The reversal of 57420619876 is 67891602475.

The square root of 57420619876 is 239626.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 30663512100 + 26757107776 = 175110^2 + 163576^2 .

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (57420619871) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 419346 + ... + 539158.

Almost surely, 257420619876 is an apocalyptic number.

57420619876 is the 239626-th square number.

It is an amenable number.

57420619876 is a deficient number, since it is larger than the sum of its proper divisors (43066303605).

57420619876 is an frugal number, since it uses more digits than its factorization.

57420619876 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 239630 (or 119815 counting only the distinct ones).

The product of its (nonzero) digits is 5080320, while the sum is 55.

The spelling of 57420619876 in words is "fifty-seven billion, four hundred twenty million, six hundred nineteen thousand, eight hundred seventy-six".

Divisors: 1 2 4 119813 239626 479252 14355154969 28710309938 57420619876