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102906885 = 3527724767
BaseRepresentation
bin1100010001000…
…11110000000101
321011122012201010
412020203300011
5202321010020
614113352433
72356460034
oct610436005
9234565633
10102906885
11530a7514
122a568719
1318420963
14d94a71b
15907ade0
hex6223c05

102906885 has 16 divisors (see below), whose sum is σ = 165252096. Its totient is φ = 54683328.

The previous prime is 102906851. The next prime is 102906911. The reversal of 102906885 is 588609201.

It is not a de Polignac number, because 102906885 - 26 = 102906821 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, 8229 + ... + 16538.

It is an arithmetic number, because the mean of its divisors is an integer number (10328256).

Almost surely, 2102906885 is an apocalyptic number.

102906885 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

102906885 is a deficient number, since it is larger than the sum of its proper divisors (62345211).

102906885 is a wasteful number, since it uses less digits than its factorization.

102906885 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25052.

The product of its (nonzero) digits is 34560, while the sum is 39.

The square root of 102906885 is about 10144.3030810401. The cubic root of 102906885 is about 468.6135161756.

The spelling of 102906885 in words is "one hundred two million, nine hundred six thousand, eight hundred eighty-five".

Divisors: 1 3 5 15 277 831 1385 4155 24767 74301 123835 371505 6860459 20581377 34302295 102906885