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12871506156 = 2233175146073
BaseRepresentation
bin10111111110011001…
…11001100011101100
31020020001000021001020
423333030321203230
5202330101144111
65525121014140
7633652666005
oct137714714354
936201007036
1012871506156
1155056a20a3
1225b2784350
1312a1892942
148a167c1ac
1550501e906
hex2ff3398ec

12871506156 has 48 divisors (see below), whose sum is σ = 31044292608. Its totient is φ = 4146480000.

The previous prime is 12871506127. The next prime is 12871506161. The reversal of 12871506156 is 65160517821.

It is a hoax number, since the sum of its digits (42) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 256336 + ... + 302408.

It is an arithmetic number, because the mean of its divisors is an integer number (646756096).

Almost surely, 212871506156 is an apocalyptic number.

It is an amenable number.

12871506156 is an abundant number, since it is smaller than the sum of its proper divisors (18172786452).

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

12871506156 is a wasteful number, since it uses less digits than its factorization.

12871506156 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46862 (or 46860 counting only the distinct ones).

The product of its (nonzero) digits is 100800, while the sum is 42.

The spelling of 12871506156 in words is "twelve billion, eight hundred seventy-one million, five hundred six thousand, one hundred fifty-six".

Divisors: 1 2 3 4 6 12 31 62 93 124 186 372 751 1502 2253 3004 4506 9012 23281 46073 46562 69843 92146 93124 138219 139686 184292 276438 279372 552876 1428263 2856526 4284789 5713052 8569578 17139156 34600823 69201646 103802469 138403292 207604938 415209876 1072625513 2145251026 3217876539 4290502052 6435753078 12871506156