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13129076 = 2219172751
BaseRepresentation
bin110010000101…
…010101110100
3220201000201002
4302011111310
511330112301
61145222432
7216411122
oct62052564
926630632
1013129076
117458084
124491a18
132948bac
141a5a912
15124516b
hexc85574

13129076 has 12 divisors (see below), whose sum is σ = 24185280. Its totient is φ = 6219000.

The previous prime is 13129073. The next prime is 13129087. The reversal of 13129076 is 67092131.

It is a super-2 number, since 2×131290762 = 344745273227552, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13129073) 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 3 ways as a sum of consecutive naturals, for example, 86300 + ... + 86451.

It is an arithmetic number, because the mean of its divisors is an integer number (2015440).

Almost surely, 213129076 is an apocalyptic number.

It is an amenable number.

13129076 is a deficient number, since it is larger than the sum of its proper divisors (11056204).

13129076 is a wasteful number, since it uses less digits than its factorization.

13129076 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 172774 (or 172772 counting only the distinct ones).

The product of its (nonzero) digits is 2268, while the sum is 29.

The square root of 13129076 is about 3623.4066843235. The cubic root of 13129076 is about 235.9091146735.

The spelling of 13129076 in words is "thirteen million, one hundred twenty-nine thousand, seventy-six".

Divisors: 1 2 4 19 38 76 172751 345502 691004 3282269 6564538 13129076