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7057009 = 127181307
BaseRepresentation
bin11010111010111001110001
3111021112101201
4122322321301
53301311014
6411131201
7113661241
oct32727161
914245351
107057009
113a90043
122443b01
13160115b
14d19b21
15945e74
hex6bae71

7057009 has 8 divisors (see below), whose sum is σ = 7175168. Its totient is φ = 6940080.

The previous prime is 7056949. The next prime is 7057013. The reversal of 7057009 is 9007507.

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 7057009 - 211 = 7054961 is a prime.

It is a Duffinian number.

7057009 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (7057069) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22834 + ... + 23140.

It is an arithmetic number, because the mean of its divisors is an integer number (896896).

Almost surely, 27057009 is an apocalyptic number.

It is an amenable number.

7057009 is a deficient number, since it is larger than the sum of its proper divisors (118159).

7057009 is a wasteful number, since it uses less digits than its factorization.

7057009 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 615.

The product of its (nonzero) digits is 2205, while the sum is 28.

The square root of 7057009 is about 2656.5031526426. The cubic root of 7057009 is about 191.8110210144.

The spelling of 7057009 in words is "seven million, fifty-seven thousand, nine".

Divisors: 1 127 181 307 22987 38989 55567 7057009