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12799017120 = 25351719312663
BaseRepresentation
bin10111110101110000…
…11000000010100000
31020000222121102210010
423322320120002200
5202203022021440
65514011204520
7632112564501
oct137270300240
936028542703
1012799017120
115478790aaa
122592446740
13128c862216
14895bacba8
154ed9a1580
hex2fae180a0

12799017120 has 384 divisors, whose sum is σ = 46402191360. Its totient is φ = 2943959040.

The previous prime is 12799017083. The next prime is 12799017149. The reversal of 12799017120 is 2171099721.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 4804909 + ... + 4807571.

It is an arithmetic number, because the mean of its divisors is an integer number (120839040).

Almost surely, 212799017120 is an apocalyptic number.

12799017120 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 12799017120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (23201095680).

12799017120 is an abundant number, since it is smaller than the sum of its proper divisors (33603174240).

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

12799017120 is a wasteful number, since it uses less digits than its factorization.

12799017120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2748 (or 2740 counting only the distinct ones).

The product of its (nonzero) digits is 15876, while the sum is 39.

The spelling of 12799017120 in words is "twelve billion, seven hundred ninety-nine million, seventeen thousand, one hundred twenty".