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12749379360 = 2535181257571
BaseRepresentation
bin10111101111110110…
…00001011100100000
31012220112012120120120
423313323001130200
5202102320114420
65505035240240
7630640636134
oct136773013440
935815176516
1012749379360
115452768463
1225798a9080
1312824a2973
1488d36b3c4
154e9448d40
hex2f7ec1720

12749379360 has 192 divisors, whose sum is σ = 40610553984. Its totient is φ = 3361996800.

The previous prime is 12749379337. The next prime is 12749379457. The reversal of 12749379360 is 6397394721.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 22327875 + ... + 22328445.

It is an arithmetic number, because the mean of its divisors is an integer number (211513302).

Almost surely, 212749379360 is an apocalyptic number.

12749379360 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12749379360, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20305276992).

12749379360 is an abundant number, since it is smaller than the sum of its proper divisors (27861174624).

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

12749379360 is a wasteful number, since it uses less digits than its factorization.

12749379360 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1027 (or 1019 counting only the distinct ones).

The product of its (nonzero) digits is 1714608, while the sum is 51.

The spelling of 12749379360 in words is "twelve billion, seven hundred forty-nine million, three hundred seventy-nine thousand, three hundred sixty".