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7000057 is a prime number
BaseRepresentation
bin11010101100111111111001
3111011122021101
4122230333321
53243000212
6410011401
7113333221
oct32547771
914148241
107000057
113a51279
122416b61
1315b125c
14d03081
15934157
hex6acff9

7000057 has 2 divisors, whose sum is σ = 7000058. Its totient is φ = 7000056.

The previous prime is 7000033. The next prime is 7000061. The reversal of 7000057 is 7500007.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6446521 + 553536 = 2539^2 + 744^2 .

It is a cyclic number.

It is not a de Polignac number, because 7000057 - 27 = 6999929 is a prime.

7000057 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 6999998 and 7000043.

It is not a weakly prime, because it can be changed into another prime (7000087) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3500028 + 3500029.

It is an arithmetic number, because the mean of its divisors is an integer number (3500029).

Almost surely, 27000057 is an apocalyptic number.

It is an amenable number.

7000057 is a deficient number, since it is larger than the sum of its proper divisors (1).

7000057 is an equidigital number, since it uses as much as digits as its factorization.

7000057 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 245, while the sum is 19.

The square root of 7000057 is about 2645.7620830301. The cubic root of 7000057 is about 191.2936375000.

The spelling of 7000057 in words is "seven million, fifty-seven", and thus it is an aban number and an uban number.