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13907019 = 372328793
BaseRepresentation
bin110101000011…
…010001001011
3222011112211210
4311003101023
512030011034
61214024203
7226131150
oct65032113
928145753
1013907019
117939605
1247a8063
132b5c009
141bc0227
15134a8e9
hexd4344b

13907019 has 16 divisors (see below), whose sum is σ = 22113792. Its totient is φ = 7601088.

The previous prime is 13907009. The next prime is 13907027. The reversal of 13907019 is 91070931.

It is not a de Polignac number, because 13907019 - 27 = 13906891 is a prime.

It is a super-2 number, since 2×139070192 = 386810354932722, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (13907009) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13914 + ... + 14879.

It is an arithmetic number, because the mean of its divisors is an integer number (1382112).

Almost surely, 213907019 is an apocalyptic number.

13907019 is a deficient number, since it is larger than the sum of its proper divisors (8206773).

13907019 is a wasteful number, since it uses less digits than its factorization.

13907019 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28826.

The product of its (nonzero) digits is 1701, while the sum is 30.

The square root of 13907019 is about 3729.2115788729. The cubic root of 13907019 is about 240.4794754868.

The spelling of 13907019 in words is "thirteen million, nine hundred seven thousand, nineteen".

Divisors: 1 3 7 21 23 69 161 483 28793 86379 201551 604653 662239 1986717 4635673 13907019