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102931386 = 2317155231
BaseRepresentation
bin1100010001010…
…01101110111010
321011200110022120
412020221232322
5202322301021
614114102110
72356621335
oct610515672
9234613276
10102931386
1153113968
122a57a936
131842bb5c
14d95561c
1590832c6
hex6229bba

102931386 has 8 divisors (see below), whose sum is σ = 205862784. Its totient is φ = 34310460.

The previous prime is 102931369. The next prime is 102931397. The reversal of 102931386 is 683139201.

It is a sphenic number, since it is the product of 3 distinct primes.

102931386 is an admirable number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8577610 + ... + 8577621.

It is an arithmetic number, because the mean of its divisors is an integer number (25732848).

Almost surely, 2102931386 is an apocalyptic number.

102931386 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

102931386 is a wasteful number, since it uses less digits than its factorization.

102931386 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17155236.

The product of its (nonzero) digits is 7776, while the sum is 33.

The square root of 102931386 is about 10145.5106327873. The cubic root of 102931386 is about 468.6507038029.

The spelling of 102931386 in words is "one hundred two million, nine hundred thirty-one thousand, three hundred eighty-six".

Divisors: 1 2 3 6 17155231 34310462 51465693 102931386