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12872976731444 = 229084135427221
BaseRepresentation
bin1011101101010011100100…
…1101001000110100110100
31200120122101212210220112102
42323110321031020310310
53141402324020401234
643213432555041232
72466020235545354
oct273247115106464
950518355726472
1012872976731444
114113442848aa5
12153aa51a40218
13724bbb70c04b
143270ac026b64
15174cc7d1cc7e
hexbb539348d34

12872976731444 has 12 divisors (see below), whose sum is σ = 22527957906468. Its totient is φ = 6436417329600.

The previous prime is 12872976731393. The next prime is 12872976731507. The reversal of 12872976731444 is 44413767927821.

12872976731444 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 2 ways, for example, as 10968681610000 + 1904295121444 = 3311900^2 + 1379962^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17350247 + ... + 18076974.

It is an arithmetic number, because the mean of its divisors is an integer number (1877329825539).

Almost surely, 212872976731444 is an apocalyptic number.

It is an amenable number.

12872976731444 is a deficient number, since it is larger than the sum of its proper divisors (9654981175024).

12872976731444 is a wasteful number, since it uses less digits than its factorization.

12872976731444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35518066 (or 35518064 counting only the distinct ones).

The product of its digits is 113799168, while the sum is 65.

The spelling of 12872976731444 in words is "twelve trillion, eight hundred seventy-two billion, nine hundred seventy-six million, seven hundred thirty-one thousand, four hundred forty-four".

Divisors: 1 2 4 90841 181682 363364 35427221 70854442 141708884 3218244182861 6436488365722 12872976731444