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10640017 = 90711731
BaseRepresentation
bin101000100101…
…101010010001
3202000120100201
4220211222101
510210440032
61020015201
7156303313
oct50455221
922016321
1010640017
116008003
123691501
132286c8b
1415ad7b3
15e028e7
hexa25a91

10640017 has 4 divisors (see below), whose sum is σ = 10652656. Its totient is φ = 10627380.

The previous prime is 10640009. The next prime is 10640023. The reversal of 10640017 is 71004601.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 71004601 = 312290471.

It is a cyclic number.

It is not a de Polignac number, because 10640017 - 23 = 10640009 is a prime.

It is a super-2 number, since 2×106400172 = 226419923520578, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 10639976 and 10640003.

It is not an unprimeable number, because it can be changed into a prime (10640087) 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, 4959 + ... + 6772.

It is an arithmetic number, because the mean of its divisors is an integer number (2663164).

Almost surely, 210640017 is an apocalyptic number.

It is an amenable number.

10640017 is a deficient number, since it is larger than the sum of its proper divisors (12639).

10640017 is an equidigital number, since it uses as much as digits as its factorization.

10640017 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12638.

The product of its (nonzero) digits is 168, while the sum is 19.

The square root of 10640017 is about 3261.9038919012. The cubic root of 10640017 is about 219.9450069158.

Adding to 10640017 its reverse (71004601), we get a palindrome (81644618).

The spelling of 10640017 in words is "ten million, six hundred forty thousand, seventeen".

Divisors: 1 907 11731 10640017