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13390719 = 317325801
BaseRepresentation
bin110011000101…
…001101111111
3221012022121120
4303011031333
511412000334
61155002023
7221550666
oct63051577
927168546
1013390719
117616711
124599313
132a0b004
141ac7ddd
151297949
hexcc537f

13390719 has 8 divisors (see below), whose sum is σ = 17958192. Its totient is φ = 8875200.

The previous prime is 13390709. The next prime is 13390733. The reversal of 13390719 is 91709331.

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

It is not a de Polignac number, because 13390719 - 24 = 13390703 is a prime.

It is a super-2 number, since 2×133907192 = 358622710673922, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 13390719.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13390709) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12382 + ... + 13419.

It is an arithmetic number, because the mean of its divisors is an integer number (2244774).

Almost surely, 213390719 is an apocalyptic number.

13390719 is a deficient number, since it is larger than the sum of its proper divisors (4567473).

13390719 is a wasteful number, since it uses less digits than its factorization.

13390719 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25977.

The product of its (nonzero) digits is 5103, while the sum is 33.

The square root of 13390719 is about 3659.3331359689. Note that the first 3 decimals coincide. The cubic root of 13390719 is about 237.4659245665.

The spelling of 13390719 in words is "thirteen million, three hundred ninety thousand, seven hundred nineteen".

Divisors: 1 3 173 519 25801 77403 4463573 13390719