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12740907960 = 2336511223157
BaseRepresentation
bin10111101110110101…
…01101001110111000
31012212221021012000000
423313122231032320
5202043133023320
65504133513000
7630505634154
oct136732551670
935787235000
1012740907960
115448a01800
122576aa2760
1312807c7ac1
1488c1a4064
154e8823c90
hex2f76ad3b8

12740907960 has 672 divisors, whose sum is σ = 49611532320. Its totient is φ = 2935595520.

The previous prime is 12740907953. The next prime is 12740907967. The reversal of 12740907960 is 6970904721.

It is an interprime number because it is at equal distance from previous prime (12740907953) and next prime (12740907967).

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12740907967) by changing a digit.

It is a polite number, since it can be written in 167 ways as a sum of consecutive naturals, for example, 81152202 + ... + 81152358.

It is an arithmetic number, because the mean of its divisors is an integer number (73826685).

Almost surely, 212740907960 is an apocalyptic number.

12740907960 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 12740907960, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (24805766160).

12740907960 is an abundant number, since it is smaller than the sum of its proper divisors (36870624360).

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

12740907960 is a wasteful number, since it uses less digits than its factorization.

12740907960 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 231 (or 201 counting only the distinct ones).

The product of its (nonzero) digits is 190512, while the sum is 45.

The spelling of 12740907960 in words is "twelve billion, seven hundred forty million, nine hundred seven thousand, nine hundred sixty".