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102672940 = 22513733739
BaseRepresentation
bin1100001111010…
…10101000101100
321011012022210111
412013222220230
5202241013230
614104345404
72354464006
oct607525054
9234168714
10102672940
1152a57777
122a475264
131836b326
14d8c9376
15903192a
hex61eaa2c

102672940 has 24 divisors (see below), whose sum is σ = 215827920. Its totient is φ = 41028288.

The previous prime is 102672931. The next prime is 102672959. The reversal of 102672940 is 49276201.

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 7 ways as a sum of consecutive naturals, for example, 25591 + ... + 29329.

It is an arithmetic number, because the mean of its divisors is an integer number (8992830).

Almost surely, 2102672940 is an apocalyptic number.

102672940 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

102672940 is an abundant number, since it is smaller than the sum of its proper divisors (113154980).

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

102672940 is a wasteful number, since it uses less digits than its factorization.

102672940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5121 (or 5119 counting only the distinct ones).

The product of its (nonzero) digits is 6048, while the sum is 31.

The square root of 102672940 is about 10132.7656639241. The cubic root of 102672940 is about 468.2581367458.

The spelling of 102672940 in words is "one hundred two million, six hundred seventy-two thousand, nine hundred forty".

Divisors: 1 2 4 5 10 20 1373 2746 3739 5492 6865 7478 13730 14956 18695 27460 37390 74780 5133647 10267294 20534588 25668235 51336470 102672940