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13016689 = 72380849
BaseRepresentation
bin110001101001…
…111001110001
3220111022112121
4301221321301
511313013224
61142554241
7215432350
oct61517161
926438477
1013016689
1173906a4
124438981
1329099aa
141a2b997
151221be4
hexc69e71

13016689 has 8 divisors (see below), whose sum is σ = 15523200. Its totient is φ = 10671936.

The previous prime is 13016687. The next prime is 13016699. The reversal of 13016689 is 98661031.

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

It is a cyclic number.

It is not a de Polignac number, because 13016689 - 21 = 13016687 is a prime.

It is not an unprimeable number, because it can be changed into a prime (13016681) 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, 40264 + ... + 40585.

It is an arithmetic number, because the mean of its divisors is an integer number (1940400).

Almost surely, 213016689 is an apocalyptic number.

It is an amenable number.

13016689 is a deficient number, since it is larger than the sum of its proper divisors (2506511).

13016689 is an equidigital number, since it uses as much as digits as its factorization.

13016689 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80879.

The product of its (nonzero) digits is 7776, while the sum is 34.

The square root of 13016689 is about 3607.8648810619. The cubic root of 13016689 is about 235.2340447830.

The spelling of 13016689 in words is "thirteen million, sixteen thousand, six hundred eighty-nine".

Divisors: 1 7 23 161 80849 565943 1859527 13016689