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12702928 = 247293911
BaseRepresentation
bin110000011101…
…010011010000
3212220101010211
4300131103100
511222443203
61132133504
7212654530
oct60352320
925811124
1012702928
117196997
124307294
132829c34
1419894c0
1511adc6d
hexc1d4d0

12702928 has 40 divisors (see below), whose sum is σ = 29105280. Its totient is φ = 5255040.

The previous prime is 12702919. The next prime is 12702929. The reversal of 12702928 is 82920721.

It is a super-2 number, since 2×127029282 = 322728759546368, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 12702928.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12702929) 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, 1293 + ... + 5203.

It is an arithmetic number, because the mean of its divisors is an integer number (727632).

Almost surely, 212702928 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 12702928, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14552640).

12702928 is an abundant number, since it is smaller than the sum of its proper divisors (16402352).

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

12702928 is a wasteful number, since it uses less digits than its factorization.

12702928 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3955 (or 3949 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 31.

The square root of 12702928 is about 3564.1167208721. The cubic root of 12702928 is about 233.3285840303.

The spelling of 12702928 in words is "twelve million, seven hundred two thousand, nine hundred twenty-eight".

Divisors: 1 2 4 7 8 14 16 28 29 56 58 112 116 203 232 406 464 812 1624 3248 3911 7822 15644 27377 31288 54754 62576 109508 113419 219016 226838 438032 453676 793933 907352 1587866 1814704 3175732 6351464 12702928