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258308352 = 283412457
BaseRepresentation
bin11110110010101…
…11100100000000
3200000001102110000
433121113210000
51012111331402
641344240000
76254404401
oct1731274400
9600042400
10258308352
11122898985
1272610000
13416912a3
142643d9a8
1517a25c1c
hexf657900

258308352 has 90 divisors (see below), whose sum is σ = 770290598. Its totient is φ = 86095872.

The previous prime is 258308327. The next prime is 258308357. The reversal of 258308352 is 253803852.

It can be written as a sum of positive squares in only one way, i.e., 246364416 + 11943936 = 15696^2 + 3456^2 .

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 (258308357) 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 9 ways as a sum of consecutive naturals, for example, 14508 + ... + 26964.

Almost surely, 2258308352 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 258308352, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (385145299).

258308352 is an abundant number, since it is smaller than the sum of its proper divisors (511982246).

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

258308352 is an equidigital number, since it uses as much as digits as its factorization.

258308352 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12485 (or 12462 counting only the distinct ones).

The product of its (nonzero) digits is 57600, while the sum is 36.

The square root of 258308352 is about 16071.9741164550. The cubic root of 258308352 is about 636.8631924697.

The spelling of 258308352 in words is "two hundred fifty-eight million, three hundred eight thousand, three hundred fifty-two".

Divisors: 1 2 3 4 6 8 9 12 16 18 24 27 32 36 48 54 64 72 81 96 108 128 144 162 192 216 256 288 324 384 432 576 648 768 864 1152 1296 1728 2304 2592 3456 5184 6912 10368 12457 20736 24914 37371 49828 74742 99656 112113 149484 199312 224226 298968 336339 398624 448452 597936 672678 797248 896904 1009017 1195872 1345356 1594496 1793808 2018034 2391744 2690712 3188992 3587616 4036068 4783488 5381424 7175232 8072136 9566976 10762848 14350464 16144272 21525696 28700928 32288544 43051392 64577088 86102784 129154176 258308352