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12871792320 = 263579891907
BaseRepresentation
bin10111111110011011…
…11111011011000000
31020020001112210120220
423333031333123000
5202330134323240
65525131103040
7633655300212
oct137715773300
936201483526
1012871792320
1155058780a2
1225b28a1a80
1312a1962c7a
148a17145b2
155050795d0
hex2ff37f6c0

12871792320 has 224 divisors, whose sum is σ = 41872204800. Its totient is φ = 3349192704.

The previous prime is 12871792309. The next prime is 12871792327. The reversal of 12871792320 is 2329717821.

It is not an unprimeable number, because it can be changed into a prime (12871792327) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6748807 + ... + 6750713.

Almost surely, 212871792320 is an apocalyptic number.

12871792320 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 12871792320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20936102400).

12871792320 is an abundant number, since it is smaller than the sum of its proper divisors (29000412480).

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

12871792320 is a wasteful number, since it uses less digits than its factorization.

12871792320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2095 (or 2085 counting only the distinct ones).

The product of its (nonzero) digits is 84672, while the sum is 42.

The spelling of 12871792320 in words is "twelve billion, eight hundred seventy-one million, seven hundred ninety-two thousand, three hundred twenty".