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253061 = 192701
BaseRepresentation
bin111101110010000101
3110212010122
4331302011
531044221
65231325
72102534
oct756205
9425118
10253061
11163146
12102545
138b253
146831b
154eeab
hex3dc85

253061 has 6 divisors (see below), whose sum is σ = 267462. Its totient is φ = 239400.

The previous prime is 253049. The next prime is 253063. The reversal of 253061 is 160352.

253061 is nontrivially palindromic in base 6.

It can be written as a sum of positive squares in only one way, i.e., 244036 + 9025 = 494^2 + 95^2 .

It is not a de Polignac number, because 253061 - 210 = 252037 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 253061.

It is not an unprimeable number, because it can be changed into a prime (253063) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 11 + ... + 711.

It is an arithmetic number, because the mean of its divisors is an integer number (44577).

2253061 is an apocalyptic number.

It is an amenable number.

253061 is a deficient number, since it is larger than the sum of its proper divisors (14401).

253061 is an equidigital number, since it uses as much as digits as its factorization.

253061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 739 (or 720 counting only the distinct ones).

The product of its (nonzero) digits is 180, while the sum is 17.

The square root of 253061 is about 503.0516872052. The cubic root of 253061 is about 63.2521181208.

The spelling of 253061 in words is "two hundred fifty-three thousand, sixty-one".

Divisors: 1 19 361 701 13319 253061