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253495 = 5112419
BaseRepresentation
bin111101111000110111
3110212201201
4331320313
531102440
65233331
72104024
oct757067
9425651
10253495
11163500
12102847
138b4c8
146854b
155019a
hex3de37

253495 has 12 divisors (see below), whose sum is σ = 335160. Its totient is φ = 183920.

The previous prime is 253493. The next prime is 253501. The reversal of 253495 is 594352.

It is not a de Polignac number, because 253495 - 21 = 253493 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (253493) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 396 + ... + 814.

It is an arithmetic number, because the mean of its divisors is an integer number (27930).

2253495 is an apocalyptic number.

253495 is a deficient number, since it is larger than the sum of its proper divisors (81665).

253495 is a wasteful number, since it uses less digits than its factorization.

253495 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 446 (or 435 counting only the distinct ones).

The product of its digits is 5400, while the sum is 28.

The square root of 253495 is about 503.4828696192. The cubic root of 253495 is about 63.2882566291.

The spelling of 253495 in words is "two hundred fifty-three thousand, four hundred ninety-five".

Divisors: 1 5 11 55 121 419 605 2095 4609 23045 50699 253495