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12745846620 = 22325135446943
BaseRepresentation
bin10111101111011011…
…00010111101011100
31012220021120002120100
423313231202331130
5202100414042440
65504431421100
7630565623453
oct136755427534
935807502510
1012745846620
115450775241
122578684790
1312818369a0
1488cacbb9a
154e8e9c230
hex2f7b62f5c

12745846620 has 72 divisors (see below), whose sum is σ = 41636439936. Its totient is φ = 3137438592.

The previous prime is 12745846573. The next prime is 12745846733. The reversal of 12745846620 is 2664854721.

12745846620 is a `hidden beast` number, since 1 + 2 + 7 + 4 + 584 + 6 + 62 + 0 = 666.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2721132 + ... + 2725811.

It is an arithmetic number, because the mean of its divisors is an integer number (578283888).

Almost surely, 212745846620 is an apocalyptic number.

12745846620 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12745846620 is an abundant number, since it is smaller than the sum of its proper divisors (28890593316).

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

12745846620 is a wasteful number, since it uses less digits than its factorization.

12745846620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5446971 (or 5446966 counting only the distinct ones).

The product of its (nonzero) digits is 645120, while the sum is 45.

The spelling of 12745846620 in words is "twelve billion, seven hundred forty-five million, eight hundred forty-six thousand, six hundred twenty".

Divisors: 1 2 3 4 5 6 9 10 12 13 15 18 20 26 30 36 39 45 52 60 65 78 90 117 130 156 180 195 234 260 390 468 585 780 1170 2340 5446943 10893886 16340829 21787772 27234715 32681658 49022487 54469430 65363316 70810259 81704145 98044974 108938860 141620518 163408290 196089948 212430777 245112435 283241036 326816580 354051295 424861554 490224870 637292331 708102590 849723108 980449740 1062153885 1274584662 1416205180 2124307770 2549169324 3186461655 4248615540 6372923310 12745846620