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12854308560 = 2435139385321
BaseRepresentation
bin10111111100010110…
…10010111011010000
31020011211122112101020
423332023102323100
5202311200333220
65523304235440
7633353551152
oct137613227320
936154575336
1012854308560
1154a6a16305
1225a8a6bb80
13129b150c52
1489d282ad2
15503774040
hex2fe2d2ed0

12854308560 has 80 divisors (see below), whose sum is σ = 40135139520. Its totient is φ = 3403146240.

The previous prime is 12854308553. The next prime is 12854308591. The reversal of 12854308560 is 6580345821.

It is a tau number, because it is divible by the number of its divisors (80).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 159301 + ... + 226020.

It is an arithmetic number, because the mean of its divisors is an integer number (501689244).

Almost surely, 212854308560 is an apocalyptic number.

12854308560 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12854308560 is an abundant number, since it is smaller than the sum of its proper divisors (27280830960).

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

12854308560 is a wasteful number, since it uses less digits than its factorization.

12854308560 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 385476 (or 385470 counting only the distinct ones).

The product of its (nonzero) digits is 230400, while the sum is 42.

The spelling of 12854308560 in words is "twelve billion, eight hundred fifty-four million, three hundred eight thousand, five hundred sixty".

Divisors: 1 2 3 4 5 6 8 10 12 15 16 20 24 30 40 48 60 80 120 139 240 278 417 556 695 834 1112 1390 1668 2085 2224 2780 3336 4170 5560 6672 8340 11120 16680 33360 385321 770642 1155963 1541284 1926605 2311926 3082568 3853210 4623852 5779815 6165136 7706420 9247704 11559630 15412840 18495408 23119260 30825680 46238520 53559619 92477040 107119238 160678857 214238476 267798095 321357714 428476952 535596190 642715428 803394285 856953904 1071192380 1285430856 1606788570 2142384760 2570861712 3213577140 4284769520 6427154280 12854308560