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102056415 = 3543158227
BaseRepresentation
bin1100001010101…
…00000111011111
321010001000002020
412011110013133
5202111301130
614043231223
72346315366
oct605240737
9233030066
10102056415
115267654a
122a218513
13181b3816
14d7a87dd
158e5de10
hex61541df

102056415 has 16 divisors (see below), whose sum is σ = 167088768. Its totient is φ = 53163936.

The previous prime is 102056401. The next prime is 102056431. The reversal of 102056415 is 514650201.

It is not a de Polignac number, because 102056415 - 24 = 102056399 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 78469 + ... + 79758.

It is an arithmetic number, because the mean of its divisors is an integer number (10443048).

Almost surely, 2102056415 is an apocalyptic number.

102056415 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

102056415 is a deficient number, since it is larger than the sum of its proper divisors (65032353).

102056415 is a wasteful number, since it uses less digits than its factorization.

102056415 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 158278.

The product of its (nonzero) digits is 1200, while the sum is 24.

The square root of 102056415 is about 10102.2975109625. The cubic root of 102056415 is about 467.3189972944.

The spelling of 102056415 in words is "one hundred two million, fifty-six thousand, four hundred fifteen".

Divisors: 1 3 5 15 43 129 215 645 158227 474681 791135 2373405 6803761 20411283 34018805 102056415