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13979434754 = 247397374603
BaseRepresentation
bin11010000010011110…
…10011111100000010
31100002020202212100202
431001033103330002
5212112213403004
610231055445202
71003265143355
oct150117237402
940066685322
1013979434754
115a2403226a
122861826802
13141a28b3ac
1496888229c
1556c41eb1e
hex3413d3f02

13979434754 has 16 divisors (see below), whose sum is σ = 21469304448. Its totient is φ = 6823750032.

The previous prime is 13979434739. The next prime is 13979434759. The reversal of 13979434754 is 45743497931.

It is a super-4 number, since 4×139794347544 (a number of 42 digits) contains 4444 as substring.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 13979434754.

It is not an unprimeable number, because it can be changed into a prime (13979434759) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 149984 + ... + 224619.

It is an arithmetic number, because the mean of its divisors is an integer number (1341831528).

Almost surely, 213979434754 is an apocalyptic number.

13979434754 is a deficient number, since it is larger than the sum of its proper divisors (7489869694).

13979434754 is a wasteful number, since it uses less digits than its factorization.

13979434754 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 375049.

The product of its digits is 11430720, while the sum is 56.

The spelling of 13979434754 in words is "thirteen billion, nine hundred seventy-nine million, four hundred thirty-four thousand, seven hundred fifty-four".

Divisors: 1 2 47 94 397 794 18659 37318 374603 749206 17606341 35212682 148717391 297434782 6989717377 13979434754