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103931315 = 520786263
BaseRepresentation
bin1100011000111…
…01110110110011
321020120020221222
412030131312303
5203101300230
614151335255
72401254515
oct614356663
9236506858
10103931315
1153737154
122a98152b
13186bc027
14db35bb5
1591ce6e5
hex631ddb3

103931315 has 4 divisors (see below), whose sum is σ = 124717584. Its totient is φ = 83145048.

The previous prime is 103931309. The next prime is 103931327. The reversal of 103931315 is 513139301.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 103931315 - 24 = 103931299 is a prime.

It is a Duffinian 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, 10393127 + ... + 10393136.

It is an arithmetic number, because the mean of its divisors is an integer number (31179396).

Almost surely, 2103931315 is an apocalyptic number.

103931315 is a deficient number, since it is larger than the sum of its proper divisors (20786269).

103931315 is an equidigital number, since it uses as much as digits as its factorization.

103931315 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20786268.

The product of its (nonzero) digits is 1215, while the sum is 26.

The square root of 103931315 is about 10194.6709118049. The cubic root of 103931315 is about 470.1633881918.

The spelling of 103931315 in words is "one hundred three million, nine hundred thirty-one thousand, three hundred fifteen".

Divisors: 1 5 20786263 103931315