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13106391 = 318124137
BaseRepresentation
bin110001111111…
…110011010111
3220122212120220
4301333303113
511323401031
61144525423
7216255024
oct61776327
926585526
1013106391
117442031
124480873
13293b77c
141a5254b
15123d596
hexc7fcd7

13106391 has 8 divisors (see below), whose sum is σ = 17572464. Its totient is φ = 8688960.

The previous prime is 13106383. The next prime is 13106393. The reversal of 13106391 is 19360131.

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

It is not a de Polignac number, because 13106391 - 23 = 13106383 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13106393) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11526 + ... + 12611.

It is an arithmetic number, because the mean of its divisors is an integer number (2196558).

Almost surely, 213106391 is an apocalyptic number.

13106391 is a deficient number, since it is larger than the sum of its proper divisors (4466073).

13106391 is a wasteful number, since it uses less digits than its factorization.

13106391 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24321.

The product of its (nonzero) digits is 486, while the sum is 24.

The square root of 13106391 is about 3620.2749895554. The cubic root of 13106391 is about 235.7731649319.

The spelling of 13106391 in words is "thirteen million, one hundred six thousand, three hundred ninety-one".

Divisors: 1 3 181 543 24137 72411 4368797 13106391