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12912200156 = 224491771867
BaseRepresentation
bin11000000011010000…
…01000100111011100
31020022212120201201102
430001220020213130
5202421010401111
65533133132232
7634655614262
oct140150104734
936285521642
1012912200156
1155266670a9
12260432a078
1312aa14032b
148a6c32432
155088ac13b
hex301a089dc

12912200156 has 12 divisors (see below), whose sum is σ = 22597167768. Its totient is φ = 6455866512.

The previous prime is 12912200143. The next prime is 12912200173. The reversal of 12912200156 is 65100221921.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 143735 + ... + 215601.

It is an arithmetic number, because the mean of its divisors is an integer number (1883097314).

Almost surely, 212912200156 is an apocalyptic number.

It is an amenable number.

12912200156 is a deficient number, since it is larger than the sum of its proper divisors (9684967612).

12912200156 is a wasteful number, since it uses less digits than its factorization.

12912200156 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 116788 (or 116786 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 29.

The spelling of 12912200156 in words is "twelve billion, nine hundred twelve million, two hundred thousand, one hundred fifty-six".

Divisors: 1 2 4 44917 71867 89834 143734 179668 287468 3228050039 6456100078 12912200156