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12841809120 = 253357631673
BaseRepresentation
bin10111111010110111…
…00111010011100000
31020010222010111101000
423331123213103200
5202300000342440
65522140312000
7633142401510
oct137533472340
936128114330
1012841809120
11549a959298
1225a4842600
13129869582a
1489b74b840
15502605730
hex2fd6e74e0

12841809120 has 384 divisors, whose sum is σ = 51525089280. Its totient is φ = 2926264320.

The previous prime is 12841809119. The next prime is 12841809133. The reversal of 12841809120 is 2190814821.

It is a happy number.

It is a super-2 number, since 2×128418091202 (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

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, 19081104 + ... + 19081776.

It is an arithmetic number, because the mean of its divisors is an integer number (134179920).

Almost surely, 212841809120 is an apocalyptic number.

12841809120 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 12841809120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25762544640).

12841809120 is an abundant number, since it is smaller than the sum of its proper divisors (38683280160).

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

12841809120 is a wasteful number, since it uses less digits than its factorization.

12841809120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1335 (or 1321 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 36.

The spelling of 12841809120 in words is "twelve billion, eight hundred forty-one million, eight hundred nine thousand, one hundred twenty".