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13129122 = 234315077
BaseRepresentation
bin110010000101…
…010110100010
3220201000202210
4302011112202
511330112442
61145222550
7216411216
oct62052642
926630683
1013129122
117458116
124491a56
132948c16
141a5a946
15124519c
hexc855a2

13129122 has 16 divisors (see below), whose sum is σ = 26324352. Its totient is φ = 4365360.

The previous prime is 13129111. The next prime is 13129201. The reversal of 13129122 is 22192131.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 48 + ... + 5124.

It is an arithmetic number, because the mean of its divisors is an integer number (1645272).

Almost surely, 213129122 is an apocalyptic number.

13129122 is an abundant number, since it is smaller than the sum of its proper divisors (13195230).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13129122 is a wasteful number, since it uses less digits than its factorization.

13129122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5513.

The product of its digits is 216, while the sum is 21.

The square root of 13129122 is about 3623.4130319355. The cubic root of 13129122 is about 235.9093901894.

The spelling of 13129122 in words is "thirteen million, one hundred twenty-nine thousand, one hundred twenty-two".

Divisors: 1 2 3 6 431 862 1293 2586 5077 10154 15231 30462 2188187 4376374 6564561 13129122