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258494112 = 25331717599
BaseRepresentation
bin11110110100001…
…00111010100000
3200000101212021000
433122010322200
51012133302422
641352232000
76256110102
oct1732047240
9600355230
10258494112
11122a054a8
127269b600
13417279c6
142648b572
1517a60cac
hexf684ea0

258494112 has 96 divisors (see below), whose sum is σ = 798336000. Its totient is φ = 81091584.

The previous prime is 258494111. The next prime is 258494189. The reversal of 258494112 is 211494852.

258494112 is a `hidden beast` number, since 2 + 58 + 494 + 112 = 666.

It is a tau number, because it is divible by the number of its divisors (96).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (258494111) 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, 5889 + ... + 23487.

It is an arithmetic number, because the mean of its divisors is an integer number (8316000).

Almost surely, 2258494112 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 258494112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (399168000).

258494112 is an abundant number, since it is smaller than the sum of its proper divisors (539841888).

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

258494112 is a wasteful number, since it uses less digits than its factorization.

258494112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17635 (or 17621 counting only the distinct ones).

The product of its digits is 23040, while the sum is 36.

The square root of 258494112 is about 16077.7520816811. The cubic root of 258494112 is about 637.0158205955.

The spelling of 258494112 in words is "two hundred fifty-eight million, four hundred ninety-four thousand, one hundred twelve".

Divisors: 1 2 3 4 6 8 9 12 16 17 18 24 27 32 34 36 48 51 54 68 72 96 102 108 136 144 153 204 216 272 288 306 408 432 459 544 612 816 864 918 1224 1632 1836 2448 3672 4896 7344 14688 17599 35198 52797 70396 105594 140792 158391 211188 281584 299183 316782 422376 475173 563168 598366 633564 844752 897549 950346 1196732 1267128 1689504 1795098 1900692 2393464 2534256 2692647 3590196 3801384 4786928 5068512 5385294 7180392 7602768 8077941 9573856 10770588 14360784 15205536 16155882 21541176 28721568 32311764 43082352 64623528 86164704 129247056 258494112