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13191117 = 35382963
BaseRepresentation
bin110010010100…
…011111001101
3220211011210220
4302110133031
511334103432
61150421553
7220060032
oct62243715
926734726
1013191117
11749a755
1245018b9
13296b1c4
141a75389
15125872c
hexc947cd

13191117 has 8 divisors (see below), whose sum is σ = 17920224. Its totient is φ = 8628048.

The previous prime is 13191103. The next prime is 13191169. The reversal of 13191117 is 71119131.

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

It is not a de Polignac number, because 13191117 - 215 = 13158349 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13191917) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 41323 + ... + 41640.

It is an arithmetic number, because the mean of its divisors is an integer number (2240028).

Almost surely, 213191117 is an apocalyptic number.

It is an amenable number.

13191117 is a deficient number, since it is larger than the sum of its proper divisors (4729107).

13191117 is an equidigital number, since it uses as much as digits as its factorization.

13191117 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 83019.

The product of its digits is 189, while the sum is 24.

The square root of 13191117 is about 3631.9577365382. The cubic root of 13191117 is about 236.2801243746.

The spelling of 13191117 in words is "thirteen million, one hundred ninety-one thousand, one hundred seventeen".

Divisors: 1 3 53 159 82963 248889 4397039 13191117