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15239042268 = 2235931368767
BaseRepresentation
bin11100011000101000…
…10101010011011100
31110100000221120000220
432030110111103130
5222202143323033
611000053321340
71046431502442
oct161424252334
943300846026
1015239042268
11651005100a
122b53636250
13158b222c98
14a47c8ab92
155e2cd1bb3
hex38c5154dc

15239042268 has 48 divisors (see below), whose sum is σ = 36276495360. Its totient is φ = 4977558144.

The previous prime is 15239042263. The next prime is 15239042303. The reversal of 15239042268 is 86224093251.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15239042263) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 187221 + ... + 255987.

It is an arithmetic number, because the mean of its divisors is an integer number (755760320).

Almost surely, 215239042268 is an apocalyptic number.

It is an amenable number.

15239042268 is an abundant number, since it is smaller than the sum of its proper divisors (21037453092).

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

15239042268 is a wasteful number, since it uses less digits than its factorization.

15239042268 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69146 (or 69144 counting only the distinct ones).

The product of its (nonzero) digits is 207360, while the sum is 42.

The spelling of 15239042268 in words is "fifteen billion, two hundred thirty-nine million, forty-two thousand, two hundred sixty-eight".

Divisors: 1 2 3 4 6 12 59 118 177 236 313 354 626 708 939 1252 1878 3756 18467 36934 55401 68767 73868 110802 137534 206301 221604 275068 412602 825204 4057253 8114506 12171759 16229012 21524071 24343518 43048142 48687036 64572213 86096284 129144426 258288852 1269920189 2539840378 3809760567 5079680756 7619521134 15239042268