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13957538 = 27996967
BaseRepresentation
bin110101001111…
…100110100010
3222021010010212
4311033212202
512033120123
61215054122
7226431350
oct65174642
928233125
1013957538
117973561
124811342
132b78cca
141bd47d0
15135a878
hexd4f9a2

13957538 has 8 divisors (see below), whose sum is σ = 23927232. Its totient is φ = 5981796.

The previous prime is 13957523. The next prime is 13957553. The reversal of 13957538 is 83575931.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (13957523) and next prime (13957553).

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

It is a junction number, because it is equal to n+sod(n) for n = 13957495 and 13957504.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 498470 + ... + 498497.

It is an arithmetic number, because the mean of its divisors is an integer number (2990904).

Almost surely, 213957538 is an apocalyptic number.

13957538 is a deficient number, since it is larger than the sum of its proper divisors (9969694).

13957538 is an equidigital number, since it uses as much as digits as its factorization.

13957538 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 996976.

The product of its digits is 113400, while the sum is 41.

The square root of 13957538 is about 3735.9788543299. The cubic root of 13957538 is about 240.7703142730.

The spelling of 13957538 in words is "thirteen million, nine hundred fifty-seven thousand, five hundred thirty-eight".

Divisors: 1 2 7 14 996967 1993934 6978769 13957538