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13992043492 = 227271387977
BaseRepresentation
bin11010000011111110…
…11010001111100100
31100010010111110022001
431001333122033210
5212123430342432
610232230015044
71003510256500
oct150177321744
940103443261
1013992043492
115a30164409
122865aa7484
13141ca8449b
1496a405300
1556d5b09e7
hex341fda3e4

13992043492 has 18 divisors (see below), whose sum is σ = 28483803222. Its totient is φ = 5996589984.

The previous prime is 13992043489. The next prime is 13992043553. The reversal of 13992043492 is 29434029931.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 11623858596 + 2368184896 = 107814^2 + 48664^2 .

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 5 ways as a sum of consecutive naturals, for example, 35693793 + ... + 35694184.

Almost surely, 213992043492 is an apocalyptic number.

It is an amenable number.

13992043492 is an abundant number, since it is smaller than the sum of its proper divisors (14491759730).

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

13992043492 is a wasteful number, since it uses less digits than its factorization.

13992043492 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71387995 (or 71387986 counting only the distinct ones).

The product of its (nonzero) digits is 419904, while the sum is 46.

The spelling of 13992043492 in words is "thirteen billion, nine hundred ninety-two million, forty-three thousand, four hundred ninety-two".

Divisors: 1 2 4 7 14 28 49 98 196 71387977 142775954 285551908 499715839 999431678 1998863356 3498010873 6996021746 13992043492