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258312672 = 2533535641
BaseRepresentation
bin11110110010110…
…00100111100000
3200000001122101000
433121120213200
51012112001142
641344312000
76254423112
oct1731304740
9600048330
10258312672
111228a1152
1272612600
1341693247
14264413b2
1517a2714c
hexf6589e0

258312672 has 96 divisors (see below), whose sum is σ = 767763360. Its totient is φ = 84464640.

The previous prime is 258312667. The next prime is 258312709. The reversal of 258312672 is 276213852.

258312672 is a `hidden beast` number, since 2 + 583 + 1 + 2 + 6 + 72 = 666.

258312672 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 42972 + ... + 48612.

It is an arithmetic number, because the mean of its divisors is an integer number (7997535).

Almost surely, 2258312672 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 258312672, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (383881680).

258312672 is an abundant number, since it is smaller than the sum of its proper divisors (509450688).

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

258312672 is a wasteful number, since it uses less digits than its factorization.

258312672 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5713 (or 5699 counting only the distinct ones).

The product of its digits is 40320, while the sum is 36.

The square root of 258312672 is about 16072.1085113311. The cubic root of 258312672 is about 636.8667427919.

The spelling of 258312672 in words is "two hundred fifty-eight million, three hundred twelve thousand, six hundred seventy-two".

Divisors: 1 2 3 4 6 8 9 12 16 18 24 27 32 36 48 53 54 72 96 106 108 144 159 212 216 288 318 424 432 477 636 848 864 954 1272 1431 1696 1908 2544 2862 3816 5088 5641 5724 7632 11282 11448 15264 16923 22564 22896 33846 45128 45792 50769 67692 90256 101538 135384 152307 180512 203076 270768 298973 304614 406152 541536 597946 609228 812304 896919 1195892 1218456 1624608 1793838 2391784 2436912 2690757 3587676 4783568 4873824 5381514 7175352 8072271 9567136 10763028 14350704 16144542 21526056 28701408 32289084 43052112 64578168 86104224 129156336 258312672