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13979737 = 97167863
BaseRepresentation
bin110101010101…
…000001011001
3222022020121001
4311111001121
512034322422
61215345001
7226553152
oct65250131
928266531
1013979737
117989202
124822161
132b86145
141bdc929
151362227
hexd55059

13979737 has 8 divisors (see below), whose sum is σ = 14224896. Its totient is φ = 13736832.

The previous prime is 13979723. The next prime is 13979741. The reversal of 13979737 is 73797931.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-13979737 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13979717) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15768 + ... + 16630.

It is an arithmetic number, because the mean of its divisors is an integer number (1778112).

Almost surely, 213979737 is an apocalyptic number.

It is an amenable number.

13979737 is a deficient number, since it is larger than the sum of its proper divisors (245159).

13979737 is an equidigital number, since it uses as much as digits as its factorization.

With its predecessor (13979736) it forms a Ruth-Aaron pair, since the sum of their distinct prime factors is the same (1127).

13979737 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1127.

The product of its digits is 250047, while the sum is 46.

The square root of 13979737 is about 3738.9486490189. The cubic root of 13979737 is about 240.8978923864.

The spelling of 13979737 in words is "thirteen million, nine hundred seventy-nine thousand, seven hundred thirty-seven".

Divisors: 1 97 167 863 16199 83711 144121 13979737