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10020131999 = 23617141933
BaseRepresentation
bin10010101010011111…
…10001010010011111
3221212022122110000222
421111033301102133
5131010123210444
64334142111555
7503210500553
oct112517612237
927768573028
1010020131999
114282115529
121b3787b5bb
13c38c189b7
146b0ac3863
153d9a37eee
hex2553f149f

10020131999 has 8 divisors (see below), whose sum is σ = 10627197792. Its totient is φ = 9427350240.

The previous prime is 10020131977. The next prime is 10020132013. The reversal of 10020131999 is 99913102001.

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 10020131999 - 28 = 10020131743 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 (10020131969) 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 7 ways as a sum of consecutive naturals, for example, 3569564 + ... + 3572369.

It is an arithmetic number, because the mean of its divisors is an integer number (1328399724).

Almost surely, 210020131999 is an apocalyptic number.

10020131999 is a deficient number, since it is larger than the sum of its proper divisors (607065793).

10020131999 is an equidigital number, since it uses as much as digits as its factorization.

10020131999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7142017.

The product of its (nonzero) digits is 4374, while the sum is 35.

The spelling of 10020131999 in words is "ten billion, twenty million, one hundred thirty-one thousand, nine hundred ninety-nine".

Divisors: 1 23 61 1403 7141933 164264459 435657913 10020131999