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629081 is a prime number
BaseRepresentation
bin10011001100101011001
31011221221022
42121211121
5130112311
621252225
75230025
oct2314531
91157838
10629081
1139a702
12264075
1319044b
14125385
15c65db
hex99959

629081 has 2 divisors, whose sum is σ = 629082. Its totient is φ = 629080.

The previous prime is 629059. The next prime is 629113. The reversal of 629081 is 180926.

629081 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 336400 + 292681 = 580^2 + 541^2 .

It is a cyclic number.

It is not a de Polignac number, because 629081 - 210 = 628057 is a prime.

It is a super-2 number, since 2×6290812 = 791485809122, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 629081.

It is not a weakly prime, because it can be changed into another prime (629011) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 314540 + 314541.

It is an arithmetic number, because the mean of its divisors is an integer number (314541).

2629081 is an apocalyptic number.

It is an amenable number.

629081 is a deficient number, since it is larger than the sum of its proper divisors (1).

629081 is an equidigital number, since it uses as much as digits as its factorization.

629081 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 864, while the sum is 26.

The square root of 629081 is about 793.1462664604. The cubic root of 629081 is about 85.6844847459.

The spelling of 629081 in words is "six hundred twenty-nine thousand, eighty-one".