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258434 = 21117691
BaseRepresentation
bin111111000110000010
3111010111122
4333012002
531232214
65312242
72124311
oct770602
9433448
10258434
11167190
12105682
1390827
146a278
155188e
hex3f182

258434 has 16 divisors (see below), whose sum is σ = 448416. Its totient is φ = 110400.

The previous prime is 258421. The next prime is 258437. The reversal of 258434 is 434852.

258434 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a d-powerful number, because it can be written as 217 + 57 + 4 + 85 + 34 + 47 .

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 258434.

It is not an unprimeable number, because it can be changed into a prime (258437) 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, 29 + ... + 719.

It is an arithmetic number, because the mean of its divisors is an integer number (28026).

2258434 is an apocalyptic number.

258434 is a deficient number, since it is larger than the sum of its proper divisors (189982).

258434 is a wasteful number, since it uses less digits than its factorization.

258434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 721.

The product of its digits is 3840, while the sum is 26.

The square root of 258434 is about 508.3640427882. The cubic root of 258434 is about 63.6966438086.

The spelling of 258434 in words is "two hundred fifty-eight thousand, four hundred thirty-four".

Divisors: 1 2 11 17 22 34 187 374 691 1382 7601 11747 15202 23494 129217 258434