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12990758143 = 1173121313337
BaseRepresentation
bin11000001100100111…
…10011110011111111
31020112100101220000111
430012103303303333
5203101113230033
65545021010451
7636631423306
oct140623636377
936470356014
1012990758143
115566a42960
1226266b3a27
1312c04b724c
148b344143d
155107287cd
hex3064f3cff

12990758143 has 16 divisors (see below), whose sum is σ = 14378790816. Its totient is φ = 11637527040.

The previous prime is 12990758117. The next prime is 12990758149. The reversal of 12990758143 is 34185709921.

It is a happy number.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-12990758143 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12990758149) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 967371 + ... + 980707.

It is an arithmetic number, because the mean of its divisors is an integer number (898674426).

Almost surely, 212990758143 is an apocalyptic number.

12990758143 is a deficient number, since it is larger than the sum of its proper divisors (1388032673).

12990758143 is a wasteful number, since it uses less digits than its factorization.

12990758143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14634.

The product of its (nonzero) digits is 544320, while the sum is 49.

The spelling of 12990758143 in words is "twelve billion, nine hundred ninety million, seven hundred fifty-eight thousand, one hundred forty-three".

Divisors: 1 11 73 803 1213 13337 13343 88549 146707 973601 974039 10709611 16177781 177955591 1180978013 12990758143