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10668390841 = 93371142593
BaseRepresentation
bin10011110111110001…
…01011100110111001
31000112111110101222201
421323320223212321
5133322102001331
64522340350201
7525241553203
oct117370534671
930474411881
1010668390841
114585034a39
1220989a5361
131010310304
14732c2d773
154268d9a61
hex27be2b9b9

10668390841 has 4 divisors (see below), whose sum is σ = 10669542772. Its totient is φ = 10667238912.

The previous prime is 10668390839. The next prime is 10668390847. The reversal of 10668390841 is 14809386601.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 14809386601 = 71592068639.

It can be written as a sum of positive squares in 2 ways, for example, as 6463516816 + 4204874025 = 80396^2 + 64845^2 .

It is a cyclic number.

It is not a de Polignac number, because 10668390841 - 21 = 10668390839 is a prime.

It is a super-2 number, since 2×106683908412 (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 10668390791 and 10668390800.

It is not an unprimeable number, because it can be changed into a prime (10668390847) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 561960 + ... + 580633.

It is an arithmetic number, because the mean of its divisors is an integer number (2667385693).

Almost surely, 210668390841 is an apocalyptic number.

It is an amenable number.

10668390841 is a deficient number, since it is larger than the sum of its proper divisors (1151931).

10668390841 is an equidigital number, since it uses as much as digits as its factorization.

10668390841 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1151930.

The product of its (nonzero) digits is 248832, while the sum is 46.

The spelling of 10668390841 in words is "ten billion, six hundred sixty-eight million, three hundred ninety thousand, eight hundred forty-one".

Divisors: 1 9337 1142593 10668390841