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57057095660 = 22519314781631
BaseRepresentation
bin110101001000110111…
…100010111111101100
312110021101222202221012
4311020313202333230
51413323104030120
642113415324352
74056633211445
oct651067427754
9173241882835
1057057095660
112221a274514
12b0843806b8
1354c3b46986
142a93ab02cc
15173e1db1c5
hexd48de2fec

57057095660 has 24 divisors (see below), whose sum is σ = 120440737536. Its totient is φ = 22704583680.

The previous prime is 57057095633. The next prime is 57057095677. The reversal of 57057095660 is 6659075075.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 57057095599 and 57057095608.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7386956 + ... + 7394675.

It is an arithmetic number, because the mean of its divisors is an integer number (5018364064).

Almost surely, 257057095660 is an apocalyptic number.

It is an amenable number.

57057095660 is an abundant number, since it is smaller than the sum of its proper divisors (63383641876).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

57057095660 is a wasteful number, since it uses less digits than its factorization.

57057095660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14781833 (or 14781831 counting only the distinct ones).

The product of its (nonzero) digits is 1984500, while the sum is 50.

The spelling of 57057095660 in words is "fifty-seven billion, fifty-seven million, ninety-five thousand, six hundred sixty".

Divisors: 1 2 4 5 10 20 193 386 772 965 1930 3860 14781631 29563262 59126524 73908155 147816310 295632620 2852854783 5705709566 11411419132 14264273915 28528547830 57057095660