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258066732 = 2237211172347
BaseRepresentation
bin11110110000111…
…00100100101100
3122222121011000010
433120130210230
51012031113412
641335133220
76252350100
oct1730344454
9588534003
10258066732
111227433a0
1272514210
1341608311
14263b9900
15179c933c
hexf61c92c

258066732 has 144 divisors (see below), whose sum is σ = 809440128. Its totient is φ = 63060480.

The previous prime is 258066719. The next prime is 258066733. The reversal of 258066732 is 237660852.

258066732 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (258066733) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 108783 + ... + 111129.

It is an arithmetic number, because the mean of its divisors is an integer number (5621112).

Almost surely, 2258066732 is an apocalyptic number.

258066732 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 258066732, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (404720064).

258066732 is an abundant number, since it is smaller than the sum of its proper divisors (551373396).

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

258066732 is a wasteful number, since it uses less digits than its factorization.

258066732 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2396 (or 2387 counting only the distinct ones).

The product of its (nonzero) digits is 120960, while the sum is 39.

The square root of 258066732 is about 16064.4555463296. The cubic root of 258066732 is about 636.6645579212.

The spelling of 258066732 in words is "two hundred fifty-eight million, sixty-six thousand, seven hundred thirty-two".

Divisors: 1 2 3 4 6 7 11 12 14 17 21 22 28 33 34 42 44 49 51 66 68 77 84 98 102 119 132 147 154 187 196 204 231 238 294 308 357 374 462 476 539 561 588 714 748 833 924 1078 1122 1309 1428 1617 1666 2156 2244 2347 2499 2618 3234 3332 3927 4694 4998 5236 6468 7041 7854 9163 9388 9996 14082 15708 16429 18326 25817 27489 28164 32858 36652 39899 49287 51634 54978 65716 77451 79798 98574 103268 109956 115003 119697 154902 159596 180719 197148 230006 239394 279293 309804 345009 361438 438889 460012 478788 542157 558586 690018 722876 837879 877778 1084314 1117172 1265033 1316667 1380036 1675758 1755556 1955051 2168628 2530066 2633334 3072223 3351516 3795099 3910102 5060132 5266668 5865153 6144446 7590198 7820204 9216669 11730306 12288892 15180396 18433338 21505561 23460612 36866676 43011122 64516683 86022244 129033366 258066732