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11979520960 = 2651131311353
BaseRepresentation
bin10110010100000100…
…01111101111000000
31010220212120201101111
423022002033233000
5144013224132320
65300414413104
7602602151041
oct131202175700
933825521344
1011979520960
115098144450
1223a3b01194
13118bb44354
1481900a8c8
154a1a77a5a
hex2ca08fbc0

11979520960 has 224 divisors, whose sum is σ = 32317968384. Its totient is φ = 4190208000.

The previous prime is 11979520933. The next prime is 11979520963. The reversal of 11979520960 is 6902597911.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11979520963) 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, 33936144 + ... + 33936496.

Almost surely, 211979520960 is an apocalyptic number.

11979520960 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 11979520960, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16158984192).

11979520960 is an abundant number, since it is smaller than the sum of its proper divisors (20338447424).

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

11979520960 is a wasteful number, since it uses less digits than its factorization.

11979520960 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 723 (or 713 counting only the distinct ones).

The product of its (nonzero) digits is 306180, while the sum is 49.

The spelling of 11979520960 in words is "eleven billion, nine hundred seventy-nine million, five hundred twenty thousand, nine hundred sixty".