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102707740 = 2255135387
BaseRepresentation
bin1100001111100…
…11001000011100
321011021002112101
412013303020130
5202243121430
614105214444
72355000322
oct607631034
9234232471
10102707740
1152a80933
122a491424
1318381115
14d8d7d12
15903bdca
hex61f321c

102707740 has 12 divisors (see below), whose sum is σ = 215686296. Its totient is φ = 41083088.

The previous prime is 102707701. The next prime is 102707783. The reversal of 102707740 is 47707201.

It is a junction number, because it is equal to n+sod(n) for n = 102707699 and 102707708.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2567674 + ... + 2567713.

It is an arithmetic number, because the mean of its divisors is an integer number (17973858).

Almost surely, 2102707740 is an apocalyptic number.

102707740 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

102707740 is an abundant number, since it is smaller than the sum of its proper divisors (112978556).

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

102707740 is a wasteful number, since it uses less digits than its factorization.

102707740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5135396 (or 5135394 counting only the distinct ones).

The product of its (nonzero) digits is 2744, while the sum is 28.

The square root of 102707740 is about 10134.4827199024. The cubic root of 102707740 is about 468.3110346254.

The spelling of 102707740 in words is "one hundred two million, seven hundred seven thousand, seven hundred forty".

Divisors: 1 2 4 5 10 20 5135387 10270774 20541548 25676935 51353870 102707740