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2690317 = 7384331
BaseRepresentation
bin1010010000110100001101
312001200102101
422100310031
51142042232
6133355101
731603330
oct12206415
95050371
102690317
111578303
12a98a91
13732706
14500617
153821e7
hex290d0d

2690317 has 4 divisors (see below), whose sum is σ = 3074656. Its totient is φ = 2305980.

The previous prime is 2690299. The next prime is 2690321. The reversal of 2690317 is 7130962.

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.

It is a cyclic number.

It is not a de Polignac number, because 2690317 - 219 = 2166029 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 (2690357) 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, 192159 + ... + 192172.

It is an arithmetic number, because the mean of its divisors is an integer number (768664).

22690317 is an apocalyptic number.

It is an amenable number.

2690317 is a deficient number, since it is larger than the sum of its proper divisors (384339).

2690317 is an equidigital number, since it uses as much as digits as its factorization.

2690317 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 384338.

The product of its (nonzero) digits is 2268, while the sum is 28.

The square root of 2690317 is about 1640.2185829944. The cubic root of 2690317 is about 139.0810044896.

The spelling of 2690317 in words is "two million, six hundred ninety thousand, three hundred seventeen".

Divisors: 1 7 384331 2690317