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12937747160464 = 24721284612
BaseRepresentation
bin1011110001000100110111…
…0100101101110110010000
31200210211120211210121122221
42330101031310231312100
53143433001233113324
643303304034110424
72503502302242400
oct274211564556620
950724524717587
1012937747160464
11413895aa92a85
12154b50941b414
1372b041588ba9
1432a29429c800
1517681927b0e4
hexbc44dd2dd90

12937747160464 has 45 divisors (see below), whose sum is σ = 29159664788961. Its totient is φ = 5544705620160.

The previous prime is 12937747160449. The next prime is 12937747160467. The reversal of 12937747160464 is 46406174773921.

The square root of 12937747160464 is 3596908.

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

12937747160464 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 1546312146064 + 11391435014400 = 1243508^2 + 3375120^2 .

It is not an unprimeable number, because it can be changed into a prime (12937747160467) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 100649194 + ... + 100777654.

Almost surely, 212937747160464 is an apocalyptic number.

12937747160464 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

12937747160464 is the 3596908-th square number.

It is an amenable number.

12937747160464 is an abundant number, since it is smaller than the sum of its proper divisors (16221917628497).

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

12937747160464 is an frugal number, since it uses more digits than its factorization.

12937747160464 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 256944 (or 128470 counting only the distinct ones).

The product of its (nonzero) digits is 42674688, while the sum is 61.

The spelling of 12937747160464 in words is "twelve trillion, nine hundred thirty-seven billion, seven hundred forty-seven million, one hundred sixty thousand, four hundred sixty-four".

Divisors: 1 2 4 7 8 14 16 28 49 56 98 112 196 392 784 128461 256922 513844 899227 1027688 1798454 2055376 3596908 6294589 7193816 12589178 14387632 25178356 50356712 100713424 16502228521 33004457042 66008914084 115515599647 132017828168 231031199294 264035656336 462062398588 808609197529 924124797176 1617218395058 1848249594352 3234436790116 6468873580232 12937747160464