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7007057 = 38918013
BaseRepresentation
bin11010101110101101010001
3111011222212122
4122232231101
53243211212
6410104025
7113362511
oct32565521
914158778
107007057
113a56562
12241b015
1315b44b5
14d05841
15936272
hex6aeb51

7007057 has 4 divisors (see below), whose sum is σ = 7025460. Its totient is φ = 6988656.

The previous prime is 7007041. The next prime is 7007069. The reversal of 7007057 is 7507007.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 7507007 = 63111897.

It can be written as a sum of positive squares in 2 ways, for example, as 4330561 + 2676496 = 2081^2 + 1636^2 .

It is a cyclic number.

It is not a de Polignac number, because 7007057 - 24 = 7007041 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7007027) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8618 + ... + 9395.

It is an arithmetic number, because the mean of its divisors is an integer number (1756365).

Almost surely, 27007057 is an apocalyptic number.

It is an amenable number.

7007057 is a deficient number, since it is larger than the sum of its proper divisors (18403).

7007057 is a wasteful number, since it uses less digits than its factorization.

7007057 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18402.

The product of its (nonzero) digits is 1715, while the sum is 26.

The square root of 7007057 is about 2647.0846227501. The cubic root of 7007057 is about 191.3573802839.

The spelling of 7007057 in words is "seven million, seven thousand, fifty-seven".

Divisors: 1 389 18013 7007057