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12077745470 = 257534676971
BaseRepresentation
bin10110011111110001…
…11100010100111110
31011011201102001002022
423033320330110332
5144213400323340
65314244000142
7605204066630
oct131770742476
934151361068
1012077745470
115138632a2a
122410990052
1311a62b596b
14828098a50
154aa4cb3b5
hex2cfe3c53e

12077745470 has 64 divisors (see below), whose sum is σ = 25372279296. Its totient is φ = 4053528960.

The previous prime is 12077745451. The next prime is 12077745479. The reversal of 12077745470 is 7454777021.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12077745479) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1729085 + ... + 1736055.

It is an arithmetic number, because the mean of its divisors is an integer number (396441864).

Almost surely, 212077745470 is an apocalyptic number.

12077745470 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12077745470 is an abundant number, since it is smaller than the sum of its proper divisors (13294533826).

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

12077745470 is a wasteful number, since it uses less digits than its factorization.

12077745470 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7505.

The product of its (nonzero) digits is 384160, while the sum is 44.

The spelling of 12077745470 in words is "twelve billion, seventy-seven million, seven hundred forty-five thousand, four hundred seventy".

Divisors: 1 2 5 7 10 14 35 53 70 106 265 371 467 530 742 934 1855 2335 3269 3710 4670 6538 6971 13942 16345 24751 32690 34855 48797 49502 69710 97594 123755 173257 243985 247510 346514 369463 487970 738926 866285 1732570 1847315 2586241 3255457 3694630 5172482 6510914 12931205 16277285 22788199 25862410 32554570 45576398 113940995 172539221 227881990 345078442 862696105 1207774547 1725392210 2415549094 6038872735 12077745470