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253086 = 2342181
BaseRepresentation
bin111101110010011110
3110212011120
4331302132
531044321
65231410
72102601
oct756236
9425146
10253086
11163169
12102566
138b272
1468338
154eec6
hex3dc9e

253086 has 8 divisors (see below), whose sum is σ = 506184. Its totient is φ = 84360.

The previous prime is 253081. The next prime is 253103. The reversal of 253086 is 680352.

It is a sphenic number, since it is the product of 3 distinct primes.

253086 is an admirable number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (253081) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21085 + ... + 21096.

It is an arithmetic number, because the mean of its divisors is an integer number (63273).

2253086 is an apocalyptic number.

253086 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

253086 is a wasteful number, since it uses less digits than its factorization.

253086 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42186.

The product of its (nonzero) digits is 1440, while the sum is 24.

The square root of 253086 is about 503.0765349328. The cubic root of 253086 is about 63.2542009531.

The spelling of 253086 in words is "two hundred fifty-three thousand, eighty-six".

Divisors: 1 2 3 6 42181 84362 126543 253086