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8103992 = 2313292687
BaseRepresentation
bin11110111010100000111000
3120020201120212
4132322200320
54033311432
6445410252
7125611541
oct36724070
916221525
108103992
114635716
122869988
1318a9880
14110d4c8
15aa12b2
hex7ba838

8103992 has 32 divisors (see below), whose sum is σ = 16934400. Its totient is φ = 3609984.

The previous prime is 8103983. The next prime is 8104007. The reversal of 8103992 is 2993018.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1673 + ... + 4359.

It is an arithmetic number, because the mean of its divisors is an integer number (529200).

Almost surely, 28103992 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 8103992, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8467200).

8103992 is an abundant number, since it is smaller than the sum of its proper divisors (8830408).

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

8103992 is a wasteful number, since it uses less digits than its factorization.

8103992 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2735 (or 2731 counting only the distinct ones).

The product of its (nonzero) digits is 3888, while the sum is 32.

The square root of 8103992 is about 2846.7511306751. The cubic root of 8103992 is about 200.8628719066.

The spelling of 8103992 in words is "eight million, one hundred three thousand, nine hundred ninety-two".

Divisors: 1 2 4 8 13 26 29 52 58 104 116 232 377 754 1508 2687 3016 5374 10748 21496 34931 69862 77923 139724 155846 279448 311692 623384 1012999 2025998 4051996 8103992