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2012600631 = 319231151397
BaseRepresentation
bin111011111110101…
…1101100100110111
312012021001201001010
41313331131210313
513110211210011
6531413003303
7100605552216
oct16775354467
95167051033
102012600631
11943073708
12482023533
13260c69862
1415141907d
15bba511a6
hex77f5d937

2012600631 has 48 divisors (see below), whose sum is σ = 2950268928. Its totient is φ = 1218888000.

The previous prime is 2012600591. The next prime is 2012600647. The reversal of 2012600631 is 1360062102.

It is a happy number.

It is not a de Polignac number, because 2012600631 - 26 = 2012600567 is a prime.

It is a super-2 number, since 2×20126006312 = 8101122599803196322, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2012600598 and 2012600607.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2012600651) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 5069325 + ... + 5069721.

It is an arithmetic number, because the mean of its divisors is an integer number (61463936).

Almost surely, 22012600631 is an apocalyptic number.

2012600631 is a deficient number, since it is larger than the sum of its proper divisors (937668297).

2012600631 is a wasteful number, since it uses less digits than its factorization.

2012600631 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 620 (or 601 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 21.

The square root of 2012600631 is about 44862.0176875717. The cubic root of 2012600631 is about 1262.5614791615.

Adding to 2012600631 its reverse (1360062102), we get a palindrome (3372662733).

The spelling of 2012600631 in words is "two billion, twelve million, six hundred thousand, six hundred thirty-one".

Divisors: 1 3 19 31 57 93 151 361 397 453 589 1083 1191 1767 2869 4681 7543 8607 11191 12307 14043 22629 33573 36921 54511 59947 88939 143317 163533 179841 233833 266817 429951 701499 1138993 1689841 1858357 3416979 4442827 5069523 5575071 13328481 21640867 35308783 64922601 105926349 670866877 2012600631