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13190903 = 1131101383
BaseRepresentation
bin110010010100…
…011011110111
3220211011111222
4302110123313
511334102103
61150420555
7220056305
oct62243367
926734458
1013190903
11749a580
12450175b
13296b08b
141a75275
151258638
hexc946f7

13190903 has 16 divisors (see below), whose sum is σ = 15040512. Its totient is φ = 11460000.

The previous prime is 13190899. The next prime is 13190909. The reversal of 13190903 is 30909131.

It is a cyclic number.

It is not a de Polignac number, because 13190903 - 22 = 13190899 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13190909) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 34250 + ... + 34632.

It is an arithmetic number, because the mean of its divisors is an integer number (940032).

Almost surely, 213190903 is an apocalyptic number.

13190903 is a deficient number, since it is larger than the sum of its proper divisors (1849609).

13190903 is a wasteful number, since it uses less digits than its factorization.

13190903 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 526.

The product of its (nonzero) digits is 729, while the sum is 26.

The square root of 13190903 is about 3631.9282757235. The cubic root of 13190903 is about 236.2788466405.

The spelling of 13190903 in words is "thirteen million, one hundred ninety thousand, nine hundred three".

Divisors: 1 11 31 101 341 383 1111 3131 4213 11873 34441 38683 130603 425513 1199173 13190903