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102940872 = 2339074729
BaseRepresentation
bin1100010001011…
…00000011001000
321011200221022220
412020230003020
5202323101442
614114214040
72356661106
oct610540310
9234627286
10102940872
1153120001
122a584320
1318433278
14d958c76
159085eec
hex622c0c8

102940872 has 32 divisors (see below), whose sum is σ = 257690400. Its totient is φ = 34268544.

The previous prime is 102940867. The next prime is 102940889. The reversal of 102940872 is 278049201.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19404 + ... + 24132.

It is an arithmetic number, because the mean of its divisors is an integer number (8052825).

Almost surely, 2102940872 is an apocalyptic number.

102940872 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

102940872 is an abundant number, since it is smaller than the sum of its proper divisors (154749528).

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

102940872 is a wasteful number, since it uses less digits than its factorization.

102940872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5645 (or 5641 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 33.

The square root of 102940872 is about 10145.9781194323. The cubic root of 102940872 is about 468.6651000728.

The spelling of 102940872 in words is "one hundred two million, nine hundred forty thousand, eight hundred seventy-two".

Divisors: 1 2 3 4 6 8 12 24 907 1814 2721 3628 4729 5442 7256 9458 10884 14187 18916 21768 28374 37832 56748 113496 4289203 8578406 12867609 17156812 25735218 34313624 51470436 102940872