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13871290044 = 2231155940837
BaseRepresentation
bin11001110101100101…
…10001011010111100
31022210201021112201010
430322302301122330
5211402022240134
610212233515220
71000513006563
oct147262613274
938721245633
1013871290044
115978a88577
122831572b10
131400a55641
14958370bda
15562babce9
hex33acb16bc

13871290044 has 12 divisors (see below), whose sum is σ = 32366343464. Its totient is φ = 4623763344.

The previous prime is 13871290031. The next prime is 13871290073. The reversal of 13871290044 is 44009217831.

It is a tau number, because it is divible by the number of its divisors (12).

It is a junction number, because it is equal to n+sod(n) for n = 13871289984 and 13871290011.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 577970407 + ... + 577970430.

Almost surely, 213871290044 is an apocalyptic number.

It is an amenable number.

13871290044 is an abundant number, since it is smaller than the sum of its proper divisors (18495053420).

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

13871290044 is a wasteful number, since it uses less digits than its factorization.

13871290044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1155940844 (or 1155940842 counting only the distinct ones).

The product of its (nonzero) digits is 48384, while the sum is 39.

The spelling of 13871290044 in words is "thirteen billion, eight hundred seventy-one million, two hundred ninety thousand, forty-four".

Divisors: 1 2 3 4 6 12 1155940837 2311881674 3467822511 4623763348 6935645022 13871290044