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25230258 = 233479941
BaseRepresentation
bin110000000111…
…1101110110010
31202110211102000
41200033232302
522424332013
62300434430
7424311414
oct140175662
952424360
1025230258
1113272959
128548a16
1352c4c61
1434ca9b4
152335973
hex180fbb2

25230258 has 32 divisors (see below), whose sum is σ = 57265920. Its totient is φ = 8230320.

The previous prime is 25230253. The next prime is 25230277. The reversal of 25230258 is 85203252.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (25230253) 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 15 ways as a sum of consecutive naturals, for example, 2433 + ... + 7508.

It is an arithmetic number, because the mean of its divisors is an integer number (1789560).

Almost surely, 225230258 is an apocalyptic number.

25230258 is an abundant number, since it is smaller than the sum of its proper divisors (32035662).

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

25230258 is a wasteful number, since it uses less digits than its factorization.

25230258 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9999 (or 9993 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 27.

The square root of 25230258 is about 5022.9730240168. The cubic root of 25230258 is about 293.2967364237.

The spelling of 25230258 in words is "twenty-five million, two hundred thirty thousand, two hundred fifty-eight".

Divisors: 1 2 3 6 9 18 27 47 54 94 141 282 423 846 1269 2538 9941 19882 29823 59646 89469 178938 268407 467227 536814 934454 1401681 2803362 4205043 8410086 12615129 25230258