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12737077460 = 2251933299761
BaseRepresentation
bin10111101110011000…
…00110000011010100
31012212200001120112122
423313030012003110
5202041142434320
65503515435112
7630431241422
oct136714060324
935780046478
1012737077460
1154468258a8
122575755a98
13127ca86433
1488b888112
154e8318d25
hex2f73060d4

12737077460 has 24 divisors (see below), whose sum is σ = 26886460776. Its totient is φ = 5068431360.

The previous prime is 12737077459. The next prime is 12737077487. The reversal of 12737077460 is 6477073721.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 1261954576 + 11475122884 = 35524^2 + 107122^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1646021 + ... + 1653740.

It is an arithmetic number, because the mean of its divisors is an integer number (1120269199).

Almost surely, 212737077460 is an apocalyptic number.

12737077460 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12737077460 is an abundant number, since it is smaller than the sum of its proper divisors (14149383316).

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

12737077460 is a wasteful number, since it uses less digits than its factorization.

12737077460 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3299963 (or 3299961 counting only the distinct ones).

The product of its (nonzero) digits is 345744, while the sum is 44.

The spelling of 12737077460 in words is "twelve billion, seven hundred thirty-seven million, seventy-seven thousand, four hundred sixty".

Divisors: 1 2 4 5 10 20 193 386 772 965 1930 3860 3299761 6599522 13199044 16498805 32997610 65995220 636853873 1273707746 2547415492 3184269365 6368538730 12737077460