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13091073 = 321120681
BaseRepresentation
bin110001111100…
…000100000001
3220122002120120
4301330010001
511322403243
61144330453
7216162252
oct61740401
926562516
1013091073
117431576
124473a29
1329347c8
141a4ab29
151238c83
hexc7c101

13091073 has 8 divisors (see below), whose sum is σ = 17538336. Its totient is φ = 8685600.

The previous prime is 13091059. The next prime is 13091087. The reversal of 13091073 is 37019031.

It is an interprime number because it is at equal distance from previous prime (13091059) and next prime (13091087).

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

It is not a de Polignac number, because 13091073 - 25 = 13091041 is a prime.

It is a Smith number, since the sum of its digits (24) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (13091473) 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, 9708 + ... + 10973.

It is an arithmetic number, because the mean of its divisors is an integer number (2192292).

Almost surely, 213091073 is an apocalyptic number.

It is an amenable number.

13091073 is a deficient number, since it is larger than the sum of its proper divisors (4447263).

13091073 is a wasteful number, since it uses less digits than its factorization.

13091073 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20895.

The product of its (nonzero) digits is 567, while the sum is 24.

The square root of 13091073 is about 3618.1587859020. The cubic root of 13091073 is about 235.6812763956.

The spelling of 13091073 in words is "thirteen million, ninety-one thousand, seventy-three".

Divisors: 1 3 211 633 20681 62043 4363691 13091073