Search a number
-
+
57247515712 = 267312253321
BaseRepresentation
bin110101010100001101…
…111100010001000000
312110202200022010010201
4311110031330101000
51414220331000322
642144340534544
74064434566112
oct652415742100
9173680263121
1057247515712
1122307803962
12b1180b1454
13552442866a
142ab10bb3b2
151750ca1d27
hexd5437c440

57247515712 has 28 divisors (see below), whose sum is σ = 115156720156. Its totient is φ = 28231649280.

The previous prime is 57247515697. The next prime is 57247515733. The reversal of 57247515712 is 21751574275.

It can be written as a sum of positive squares in 2 ways, for example, as 32376964096 + 24870551616 = 179936^2 + 157704^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6121989 + ... + 6131332.

Almost surely, 257247515712 is an apocalyptic number.

It is an amenable number.

57247515712 is an abundant number, since it is smaller than the sum of its proper divisors (57909204444).

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

57247515712 is a wasteful number, since it uses less digits than its factorization.

57247515712 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12253406 (or 12253396 counting only the distinct ones).

The product of its digits is 686000, while the sum is 46.

The spelling of 57247515712 in words is "fifty-seven billion, two hundred forty-seven million, five hundred fifteen thousand, seven hundred twelve".

Divisors: 1 2 4 8 16 32 64 73 146 292 584 1168 2336 4672 12253321 24506642 49013284 98026568 196053136 392106272 784212544 894492433 1788984866 3577969732 7155939464 14311878928 28623757856 57247515712