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13116379 = 31423109
BaseRepresentation
bin110010000010…
…001111011011
3220200101021211
4302002033123
511324211004
61145043551
7216326113
oct62021733
926611254
1013116379
117449591
1244865b7
132943193
141a56043
151241504
hexc823db

13116379 has 4 divisors (see below), whose sum is σ = 13539520. Its totient is φ = 12693240.

The previous prime is 13116373. The next prime is 13116391. The reversal of 13116379 is 97361131.

13116379 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 13116379 - 211 = 13114331 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (31), and also a Moran number because the ratio is a prime number: 423109 = 13116379 / (1 + 3 + 1 + 1 + 6 + 3 + 7 + 9).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 13116379.

It is not an unprimeable number, because it can be changed into a prime (13116373) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 211524 + ... + 211585.

It is an arithmetic number, because the mean of its divisors is an integer number (3384880).

Almost surely, 213116379 is an apocalyptic number.

13116379 is a deficient number, since it is larger than the sum of its proper divisors (423141).

13116379 is an equidigital number, since it uses as much as digits as its factorization.

13116379 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 423140.

The product of its digits is 3402, while the sum is 31.

The square root of 13116379 is about 3621.6541800674. The cubic root of 13116379 is about 235.8330416852.

The spelling of 13116379 in words is "thirteen million, one hundred sixteen thousand, three hundred seventy-nine".

Divisors: 1 31 423109 13116379