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2012612560 = 245715123801
BaseRepresentation
bin111011111110110…
…0000011111010000
312012021002022101221
41313331200133100
513110212100220
6531413134424
7100605632050
oct16775403720
95167068357
102012612560
11943081672
1248202a414
13260c7210a
1415141d560
15bba549aa
hex77f607d0

2012612560 has 80 divisors (see below), whose sum is σ = 5383441152. Its totient is φ = 685440000.

The previous prime is 2012612509. The next prime is 2012612587. The reversal of 2012612560 is 652162102.

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 polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 72660 + ... + 96460.

Almost surely, 22012612560 is an apocalyptic number.

2012612560 is a gapful number since it is divisible by the number (20) 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 2012612560, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2691720576).

2012612560 is an abundant number, since it is smaller than the sum of its proper divisors (3370828592).

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

2012612560 is a wasteful number, since it uses less digits than its factorization.

2012612560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23972 (or 23966 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 25.

The square root of 2012612560 is about 44862.1506394867. The cubic root of 2012612560 is about 1262.5639736233.

Adding to 2012612560 its reverse (652162102), we get a palindrome (2664774662).

The spelling of 2012612560 in words is "two billion, twelve million, six hundred twelve thousand, five hundred sixty".

Divisors: 1 2 4 5 7 8 10 14 16 20 28 35 40 56 70 80 112 140 151 280 302 560 604 755 1057 1208 1510 2114 2416 3020 4228 5285 6040 8456 10570 12080 16912 21140 23801 42280 47602 84560 95204 119005 166607 190408 238010 333214 380816 476020 666428 833035 952040 1332856 1666070 1904080 2665712 3332140 3593951 6664280 7187902 13328560 14375804 17969755 25157657 28751608 35939510 50315314 57503216 71879020 100630628 125788285 143758040 201261256 251576570 287516080 402522512 503153140 1006306280 2012612560