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20335130761 = 116211297641
BaseRepresentation
bin10010111100000100…
…010111100010001001
31221111012010200020011
4102330010113202021
5313121243141021
613201500231521
71316631521341
oct227404274211
957435120204
1020335130761
1186957187a0
123b3623b5a1
131bc0c55b6a
14daca01d21
157e03b8de1
hex4bc117889

20335130761 has 8 divisors (see below), whose sum is σ = 22187425248. Its totient is φ = 18483444000.

The previous prime is 20335130743. The next prime is 20335130831. The reversal of 20335130761 is 16703153302.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 20335130761 - 213 = 20335122569 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20335130161) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 80500 + ... + 217141.

It is an arithmetic number, because the mean of its divisors is an integer number (2773428156).

Almost surely, 220335130761 is an apocalyptic number.

It is an amenable number.

20335130761 is a deficient number, since it is larger than the sum of its proper divisors (1852294487).

20335130761 is a wasteful number, since it uses less digits than its factorization.

20335130761 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 303863.

The product of its (nonzero) digits is 11340, while the sum is 31.

The spelling of 20335130761 in words is "twenty billion, three hundred thirty-five million, one hundred thirty thousand, seven hundred sixty-one".

Divisors: 1 11 6211 68321 297641 3274051 1848648251 20335130761