Search a number
-
+
2690057 = 23116959
BaseRepresentation
bin1010010000110000001001
312001200001202
422100300021
51142040212
6133353545
731602506
oct12206011
95050052
102690057
111578097
12a988b5
13732566
145004ad
153820c2
hex290c09

2690057 has 4 divisors (see below), whose sum is σ = 2807040. Its totient is φ = 2573076.

The previous prime is 2690053. The next prime is 2690059. The reversal of 2690057 is 7500962.

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 2690057 - 22 = 2690053 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2690053) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 58457 + ... + 58502.

It is an arithmetic number, because the mean of its divisors is an integer number (701760).

22690057 is an apocalyptic number.

It is an amenable number.

2690057 is a deficient number, since it is larger than the sum of its proper divisors (116983).

2690057 is a wasteful number, since it uses less digits than its factorization.

2690057 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 116982.

The product of its (nonzero) digits is 3780, while the sum is 29.

The square root of 2690057 is about 1640.1393233503. The cubic root of 2690057 is about 139.0765239486.

The spelling of 2690057 in words is "two million, six hundred ninety thousand, fifty-seven".

Divisors: 1 23 116959 2690057