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12480851560 = 2352335338431
BaseRepresentation
bin10111001111110101…
…01010111001101000
31012012210220221200111
423213322222321220
5201030044222220
65422243544104
7621200326222
oct134772527150
935183827614
1012480851560
11532512a561
12250398b034
13123b973c88
1486582b412
154d0aa515a
hex2e7eaae68

12480851560 has 64 divisors (see below), whose sum is σ = 29386644480. Its totient is φ = 4761630720.

The previous prime is 12480851557. The next prime is 12480851573. The reversal of 12480851560 is 6515808421.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (40).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 305545 + ... + 343975.

It is an arithmetic number, because the mean of its divisors is an integer number (459166320).

Almost surely, 212480851560 is an apocalyptic number.

12480851560 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 12480851560, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14693322240).

12480851560 is an abundant number, since it is smaller than the sum of its proper divisors (16905792920).

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

12480851560 is a wasteful number, since it uses less digits than its factorization.

12480851560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38818 (or 38814 counting only the distinct ones).

The product of its (nonzero) digits is 76800, while the sum is 40.

The spelling of 12480851560 in words is "twelve billion, four hundred eighty million, eight hundred fifty-one thousand, five hundred sixty".

Divisors: 1 2 4 5 8 10 20 23 40 46 92 115 184 230 353 460 706 920 1412 1765 2824 3530 7060 8119 14120 16238 32476 38431 40595 64952 76862 81190 153724 162380 192155 307448 324760 384310 768620 883913 1537240 1767826 3535652 4419565 7071304 8839130 13566143 17678260 27132286 35356520 54264572 67830715 108529144 135661430 271322860 312021289 542645720 624042578 1248085156 1560106445 2496170312 3120212890 6240425780 12480851560