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12620772512580 = 2235218039647581
BaseRepresentation
bin1011011110101000000010…
…1010011001001101000100
31122200112102100002010120110
42313222000222121031010
53123234320230400310
642501523003233020
72441551336215501
oct267520052311504
948615370063513
1012620772512580
114026492073571
1214b9ba7218770
13707197aa244b
14318bc499a4a8
1516d466751d20
hexb7a80a99344

12620772512580 has 48 divisors (see below), whose sum is σ = 35339787491904. Its totient is φ = 3365384626560.

The previous prime is 12620772512483. The next prime is 12620772512597. The reversal of 12620772512580 is 8521527702621.

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, 3515611 + ... + 6131970.

It is an arithmetic number, because the mean of its divisors is an integer number (736245572748).

Almost surely, 212620772512580 is an apocalyptic number.

12620772512580 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12620772512580 is an abundant number, since it is smaller than the sum of its proper divisors (22719014979324).

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

12620772512580 is a wasteful number, since it uses less digits than its factorization.

12620772512580 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9669396 (or 9669394 counting only the distinct ones).

The product of its (nonzero) digits is 940800, while the sum is 48.

The spelling of 12620772512580 in words is "twelve trillion, six hundred twenty billion, seven hundred seventy-two million, five hundred twelve thousand, five hundred eighty".

Divisors: 1 2 3 4 5 6 10 12 15 20 30 60 21803 43606 65409 87212 109015 130818 218030 261636 327045 436060 654090 1308180 9647581 19295162 28942743 38590324 48237905 57885486 96475810 115770972 144713715 192951620 289427430 578854860 210346208543 420692417086 631038625629 841384834172 1051731042715 1262077251258 2103462085430 2524154502516 3155193128145 4206924170860 6310386256290 12620772512580