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12430731600 = 2432527310067
BaseRepresentation
bin10111001001110110…
…11110100101010000
31012002022121121000200
423210323132211100
5200424231402400
65413253415200
7620021322000
oct134473364520
935068547020
1012430731600
1152a9907701
1224ab03a500
1312314760b1
1485cd02000
154cb4a4b00
hex2e4ede950

12430731600 has 360 divisors, whose sum is σ = 50311809600. Its totient is φ = 2841027840.

The previous prime is 12430731587. The next prime is 12430731641. The reversal of 12430731600 is 613703421.

12430731600 is a `hidden beast` number, since 1 + 2 + 430 + 73 + 160 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (360).

It is a super-2 number, since 2×124307316002 (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 1229767 + ... + 1239833.

Almost surely, 212430731600 is an apocalyptic number.

12430731600 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 12430731600, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25155904800).

12430731600 is an abundant number, since it is smaller than the sum of its proper divisors (37881078000).

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

12430731600 is a wasteful number, since it uses less digits than its factorization.

12430731600 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10112 (or 10084 counting only the distinct ones).

The product of its (nonzero) digits is 3024, while the sum is 27.

The spelling of 12430731600 in words is "twelve billion, four hundred thirty million, seven hundred thirty-one thousand, six hundred".