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12308713456 = 2413217219829
BaseRepresentation
bin10110111011010100…
…00000111111110000
31011202211000102121011
423131222000333300
5200202012312311
65353214240304
7614010223654
oct133552007760
934684012534
1012308713456
115246a47666
1224761b6094
1312120c3700
1484aa1ca64
154c0901321
hex2dda80ff0

12308713456 has 180 divisors, whose sum is σ = 28910742600. Its totient is φ = 5059252224.

The previous prime is 12308713453. The next prime is 12308713477. The reversal of 12308713456 is 65431780321.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12308713451) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 14847250 + ... + 14848078.

Almost surely, 212308713456 is an apocalyptic number.

12308713456 is a gapful number since it is divisible by the number (16) 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 12308713456, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14455371300).

12308713456 is an abundant number, since it is smaller than the sum of its proper divisors (16602029144).

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

12308713456 is a wasteful number, since it uses less digits than its factorization.

12308713456 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 916 (or 880 counting only the distinct ones).

The product of its (nonzero) digits is 120960, while the sum is 40.

The spelling of 12308713456 in words is "twelve billion, three hundred eight million, seven hundred thirteen thousand, four hundred fifty-six".