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2131632013 = 73110990121
BaseRepresentation
bin111111100001110…
…0001111110001101
312111120001010101211
41333003201332031
513331144211023
6551304134421
7103552400410
oct17703417615
95446033354
102131632013
119a4283755
124b5a67411
1327c814924
14163161b77
15c7214a0d
hex7f0e1f8d

2131632013 has 16 divisors (see below), whose sum is σ = 2537835520. Its totient is φ = 1751932800.

The previous prime is 2131631993. The next prime is 2131632029. The reversal of 2131632013 is 3102361312.

It is a cyclic number.

It is not a de Polignac number, because 2131632013 - 29 = 2131631501 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2131632043) by changing a digit.

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, 21408 + ... + 68713.

It is an arithmetic number, because the mean of its divisors is an integer number (158614720).

Almost surely, 22131632013 is an apocalyptic number.

It is an amenable number.

2131632013 is a deficient number, since it is larger than the sum of its proper divisors (406203507).

2131632013 is a wasteful number, since it uses less digits than its factorization.

2131632013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 90268.

The product of its (nonzero) digits is 648, while the sum is 22.

The square root of 2131632013 is about 46169.6005289195. The cubic root of 2131632013 is about 1286.9768787301.

Adding to 2131632013 its reverse (3102361312), we get a palindrome (5233993325).

The spelling of 2131632013 in words is "two billion, one hundred thirty-one million, six hundred thirty-two thousand, thirteen".

Divisors: 1 7 31 109 217 763 3379 23653 90121 630847 2793751 9823189 19556257 68762323 304518859 2131632013