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12929028 = 22371491033
BaseRepresentation
bin110001010100…
…100000000100
3220022212021220
4301110200010
511302212103
61141040340
7214615650
oct61244004
926285256
1012929028
117330852
1243b60b0
1328a8b18
141a07a60
151205c53
hexc54804

12929028 has 48 divisors (see below), whose sum is σ = 34742400. Its totient is φ = 3665664.

The previous prime is 12929023. The next prime is 12929039. The reversal of 12929028 is 82092921.

It is a happy number.

It is a hoax number, since the sum of its digits (33) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 12929028.

It is not an unprimeable number, because it can be changed into a prime (12929023) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12000 + ... + 13032.

It is an arithmetic number, because the mean of its divisors is an integer number (723800).

Almost surely, 212929028 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12929028, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17371200).

12929028 is an abundant number, since it is smaller than the sum of its proper divisors (21813372).

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

12929028 is a wasteful number, since it uses less digits than its factorization.

12929028 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1196 (or 1194 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 33.

The square root of 12929028 is about 3595.6957602111. The cubic root of 12929028 is about 234.7047930405.

The spelling of 12929028 in words is "twelve million, nine hundred twenty-nine thousand, twenty-eight".

Divisors: 1 2 3 4 6 7 12 14 21 28 42 84 149 298 447 596 894 1033 1043 1788 2066 2086 3099 3129 4132 4172 6198 6258 7231 12396 12516 14462 21693 28924 43386 86772 153917 307834 461751 615668 923502 1077419 1847004 2154838 3232257 4309676 6464514 12929028