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28903072092 = 2233583672227
BaseRepresentation
bin11010111010110000…
…011110000101011100
32202121022020012011120
4122322300132011130
5433143141301332
621140005050540
72042150026206
oct327260360534
982538205146
1028903072092
1111292037944
1257276b6a50
13295804b82b
1415828a9776
15b4269d32c
hex6bac1e15c

28903072092 has 24 divisors (see below), whose sum is σ = 67459424256. Its totient is φ = 9631654128.

The previous prime is 28903072049. The next prime is 28903072097. The reversal of 28903072092 is 29027030982.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28903072097) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 293118 + ... + 379109.

It is an arithmetic number, because the mean of its divisors is an integer number (2810809344).

Almost surely, 228903072092 is an apocalyptic number.

It is an amenable number.

28903072092 is an abundant number, since it is smaller than the sum of its proper divisors (38556352164).

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

28903072092 is a wasteful number, since it uses less digits than its factorization.

28903072092 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 675817 (or 675815 counting only the distinct ones).

The product of its (nonzero) digits is 108864, while the sum is 42.

The spelling of 28903072092 in words is "twenty-eight billion, nine hundred three million, seventy-two thousand, ninety-two".

Divisors: 1 2 3 4 6 12 3583 7166 10749 14332 21498 42996 672227 1344454 2016681 2688908 4033362 8066724 2408589341 4817178682 7225768023 9634357364 14451536046 28903072092