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12992508 = 2233592039
BaseRepresentation
bin110001100011…
…111111111100
3220110002101000
4301203333330
511311230013
61142250300
7215302014
oct61437774
926402330
1012992508
117374511
124426990
1328cb999
141a22c44
151219973
hexc63ffc

12992508 has 48 divisors (see below), whose sum is σ = 34272000. Its totient is φ = 4255344.

The previous prime is 12992501. The next prime is 12992519. The reversal of 12992508 is 80529921.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a zygodrome in base 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12992501) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5353 + ... + 7391.

It is an arithmetic number, because the mean of its divisors is an integer number (714000).

Almost surely, 212992508 is an apocalyptic number.

12992508 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12992508, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17136000).

12992508 is an abundant number, since it is smaller than the sum of its proper divisors (21279492).

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

12992508 is a wasteful number, since it uses less digits than its factorization.

12992508 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2111 (or 2103 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 36.

The square root of 12992508 is about 3604.5121722641. The cubic root of 12992508 is about 235.0882903498.

The spelling of 12992508 in words is "twelve million, nine hundred ninety-two thousand, five hundred eight".

Divisors: 1 2 3 4 6 9 12 18 27 36 54 59 108 118 177 236 354 531 708 1062 1593 2039 2124 3186 4078 6117 6372 8156 12234 18351 24468 36702 55053 73404 110106 120301 220212 240602 360903 481204 721806 1082709 1443612 2165418 3248127 4330836 6496254 12992508