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12698044320 = 25351310191997
BaseRepresentation
bin10111101001101110…
…01100011110100000
31012202221121111010210
423310313030132200
5202001144404240
65500003054120
7626445411243
oct136467143640
935687544123
1012698044320
115426795705
122564671340
13127496a9c0
1488660725a
154e4ba8780
hex2f4dcc7a0

12698044320 has 192 divisors, whose sum is σ = 43139537280. Its totient is φ = 3121041408.

The previous prime is 12698044297. The next prime is 12698044339. The reversal of 12698044320 is 2344089621.

It is a super-2 number, since 2×126980443202 (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (39).

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, 6357562 + ... + 6359558.

It is an arithmetic number, because the mean of its divisors is an integer number (224685090).

Almost surely, 212698044320 is an apocalyptic number.

12698044320 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 12698044320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (21569768640).

12698044320 is an abundant number, since it is smaller than the sum of its proper divisors (30441492960).

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

12698044320 is a wasteful number, since it uses less digits than its factorization.

12698044320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3047 (or 3039 counting only the distinct ones).

The product of its (nonzero) digits is 82944, while the sum is 39.

The spelling of 12698044320 in words is "twelve billion, six hundred ninety-eight million, forty-four thousand, three hundred twenty".