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12907240074 = 232729798269
BaseRepresentation
bin11000000010101010…
…01101101010001010
31020022112020201202200
430001111031222022
5202413223140244
65532434541030
7634565505351
oct140125155212
936275221680
1012907240074
115523889563
122602737776
1312a90c4781
148a6300998
1550822c669
hex30154da8a

12907240074 has 24 divisors (see below), whose sum is σ = 27969803940. Its totient is φ = 4301779968.

The previous prime is 12907240069. The next prime is 12907240081. The reversal of 12907240074 is 47004270921.

It can be written as a sum of positive squares in 2 ways, for example, as 10607558049 + 2299682025 = 102993^2 + 47955^2 .

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 82212 + ... + 180480.

Almost surely, 212907240074 is an apocalyptic number.

12907240074 is an abundant number, since it is smaller than the sum of its proper divisors (15062563866).

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

12907240074 is a wasteful number, since it uses less digits than its factorization.

12907240074 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 105574 (or 105571 counting only the distinct ones).

The product of its (nonzero) digits is 28224, while the sum is 36.

The spelling of 12907240074 in words is "twelve billion, nine hundred seven million, two hundred forty thousand, seventy-four".

Divisors: 1 2 3 6 9 18 7297 14594 21891 43782 65673 98269 131346 196538 294807 589614 884421 1768842 717068893 1434137786 2151206679 4302413358 6453620037 12907240074