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12907945740 = 22351103195043
BaseRepresentation
bin11000000010101111…
…11001111100001100
31020022120120120202110
430001113321330030
5202413413230430
65532502024020
7634604504604
oct140127717414
936276516673
1012907945740
115524220758
122602a18010
1312a92b0a21
148a6445c04
1550831b7b0
hex3015f9f0c

12907945740 has 48 divisors (see below), whose sum is σ = 36175200768. Its totient is φ = 3438980544.

The previous prime is 12907945717. The next prime is 12907945783. The reversal of 12907945740 is 4754970921.

12907945740 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 12907945740.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 31342 + ... + 163701.

It is an arithmetic number, because the mean of its divisors is an integer number (753650016).

Almost surely, 212907945740 is an apocalyptic number.

12907945740 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12907945740 is an abundant number, since it is smaller than the sum of its proper divisors (23267255028).

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

12907945740 is a wasteful number, since it uses less digits than its factorization.

12907945740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 196158 (or 196156 counting only the distinct ones).

The product of its (nonzero) digits is 635040, while the sum is 48.

The spelling of 12907945740 in words is "twelve billion, nine hundred seven million, nine hundred forty-five thousand, seven hundred forty".

Divisors: 1 2 3 4 5 6 10 12 15 20 30 60 1103 2206 3309 4412 5515 6618 11030 13236 16545 22060 33090 66180 195043 390086 585129 780172 975215 1170258 1950430 2340516 2925645 3900860 5851290 11702580 215132429 430264858 645397287 860529716 1075662145 1290794574 2151324290 2581589148 3226986435 4302648580 6453972870 12907945740