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9902130860 = 225495106543
BaseRepresentation
bin10010011100011011…
…01000011010101100
3221120002121100220102
421032031220122230
5130234421141420
64314325010232
7500245503116
oct111615503254
927502540812
109902130860
114221549526
121b04253978
13c1a64183b
1469d1683b6
153ce4c9a75
hex24e3686ac

9902130860 has 12 divisors (see below), whose sum is σ = 20794474848. Its totient is φ = 3960852336.

The previous prime is 9902130851. The next prime is 9902130907. The reversal of 9902130860 is 680312099.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 247553252 + ... + 247553291.

It is an arithmetic number, because the mean of its divisors is an integer number (1732872904).

Almost surely, 29902130860 is an apocalyptic number.

It is an amenable number.

9902130860 is an abundant number, since it is smaller than the sum of its proper divisors (10892343988).

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

9902130860 is a wasteful number, since it uses less digits than its factorization.

9902130860 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 495106552 (or 495106550 counting only the distinct ones).

The product of its (nonzero) digits is 23328, while the sum is 38.

The square root of 9902130860 is about 99509.4511089273. The cubic root of 9902130860 is about 2147.3832133461.

The spelling of 9902130860 in words is "nine billion, nine hundred two million, one hundred thirty thousand, eight hundred sixty".

Divisors: 1 2 4 5 10 20 495106543 990213086 1980426172 2475532715 4951065430 9902130860