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102708012 = 22311778091
BaseRepresentation
bin1100001111100…
…11001100101100
321011021002220110
412013303030230
5202243124022
614105220020
72355001161
oct607631454
9234232813
10102708012
1152a81060
122a491610
1318381294
14d8d8068
15903c00c
hex61f332c

102708012 has 24 divisors (see below), whose sum is σ = 261438912. Its totient is φ = 31123600.

The previous prime is 102707953. The next prime is 102708013. The reversal of 102708012 is 210807201.

It is a self number, because there is not a number n which added to its sum of digits gives 102708012.

It is not an unprimeable number, because it can be changed into a prime (102708013) 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, 388914 + ... + 389177.

It is an arithmetic number, because the mean of its divisors is an integer number (10893288).

Almost surely, 2102708012 is an apocalyptic number.

102708012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

102708012 is an abundant number, since it is smaller than the sum of its proper divisors (158730900).

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

102708012 is a wasteful number, since it uses less digits than its factorization.

102708012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 778109 (or 778107 counting only the distinct ones).

The product of its (nonzero) digits is 224, while the sum is 21.

The square root of 102708012 is about 10134.4961394240. The cubic root of 102708012 is about 468.3114480330.

The spelling of 102708012 in words is "one hundred two million, seven hundred eight thousand, twelve".

Divisors: 1 2 3 4 6 11 12 22 33 44 66 132 778091 1556182 2334273 3112364 4668546 8559001 9337092 17118002 25677003 34236004 51354006 102708012