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10404331021 = 77229205607
BaseRepresentation
bin10011011000010010…
…10111111000001101
3222212002120210000101
421230021113320031
5132302002043041
64440224531101
7515554232410
oct115411277015
928762523011
1010404331021
114459a78987
122024480a91
13c9a6b71b6
14709b33b77
1540d629b31
hex26c257e0d

10404331021 has 8 divisors (see below), whose sum is σ = 11892366720. Its totient is φ = 8916721008.

The previous prime is 10404331019. The next prime is 10404331031. The reversal of 10404331021 is 12013340401.

10404331021 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 10404331021 - 21 = 10404331019 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 10404331021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10404331001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 52201 + ... + 153406.

It is an arithmetic number, because the mean of its divisors is an integer number (1486545840).

Almost surely, 210404331021 is an apocalyptic number.

It is an amenable number.

10404331021 is a deficient number, since it is larger than the sum of its proper divisors (1488035699).

10404331021 is an equidigital number, since it uses as much as digits as its factorization.

10404331021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 212843.

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 10404331021 its reverse (12013340401), we get a palindrome (22417671422).

The spelling of 10404331021 in words is "ten billion, four hundred four million, three hundred thirty-one thousand, twenty-one".

Divisors: 1 7 7229 50603 205607 1439249 1486333003 10404331021