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8102108 = 227289361
BaseRepresentation
bin11110111010000011011100
3120020122000002
4132322003130
54033231413
6445353432
7125603210
oct36720334
916218002
108102108
114634263
122868878
1318a8a61
14110c940
15aa0958
hex7ba0dc

8102108 has 12 divisors (see below), whose sum is σ = 16204272. Its totient is φ = 3472320.

The previous prime is 8102089. The next prime is 8102111. The reversal of 8102108 is 8012018.

8102108 is an admirable number.

It is a self number, because there is not a number n which added to its sum of digits gives 8102108.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 144653 + ... + 144708.

It is an arithmetic number, because the mean of its divisors is an integer number (1350356).

Almost surely, 28102108 is an apocalyptic number.

It is an amenable number.

8102108 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.

8102108 is a wasteful number, since it uses less digits than its factorization.

8102108 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 289372 (or 289370 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 20.

The square root of 8102108 is about 2846.4202079103. The cubic root of 8102108 is about 200.8473052995.

The spelling of 8102108 in words is "eight million, one hundred two thousand, one hundred eight".

Divisors: 1 2 4 7 14 28 289361 578722 1157444 2025527 4051054 8102108