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253930 = 2567379
BaseRepresentation
bin111101111111101010
3110220022211
4331333222
531111210
65235334
72105215
oct757752
9426284
10253930
11163866
12102b4a
138b771
146877c
155038a
hex3dfea

253930 has 16 divisors (see below), whose sum is σ = 465120. Its totient is φ = 99792.

The previous prime is 253919. The next prime is 253937. The reversal of 253930 is 39352.

It is not an unprimeable number, because it can be changed into a prime (253937) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 481 + ... + 859.

It is an arithmetic number, because the mean of its divisors is an integer number (29070).

2253930 is an apocalyptic number.

253930 is a deficient number, since it is larger than the sum of its proper divisors (211190).

253930 is a wasteful number, since it uses less digits than its factorization.

253930 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 453.

The product of its (nonzero) digits is 810, while the sum is 22.

The square root of 253930 is about 503.9146753172. The cubic root of 253930 is about 63.3244370391.

The spelling of 253930 in words is "two hundred fifty-three thousand, nine hundred thirty".

Divisors: 1 2 5 10 67 134 335 379 670 758 1895 3790 25393 50786 126965 253930