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268730368 = 21559139
BaseRepresentation
bin10000000001001…
…000000000000000
3200201122220202121
4100001020000000
51022243332433
642355454024
76442112314
oct2001100000
9621586677
10268730368
11128767115
1275bb7314
134389cc6a
1427993b44
15188d3c2d
hex10048000

268730368 has 64 divisors (see below), whose sum is σ = 550494000. Its totient is φ = 131137536.

The previous prime is 268730323. The next prime is 268730369. The reversal of 268730368 is 863037862.

It is a tau number, because it is divible by the number of its divisors (64).

It is not an unprimeable number, because it can be changed into a prime (268730369) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (3) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1933243 + ... + 1933381.

Almost surely, 2268730368 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 268730368, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (275247000).

268730368 is an abundant number, since it is smaller than the sum of its proper divisors (281763632).

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

268730368 is an frugal number, since it uses more digits than its factorization.

268730368 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 228 (or 200 counting only the distinct ones).

The product of its (nonzero) digits is 290304, while the sum is 43.

The square root of 268730368 is about 16392.9975294331. The cubic root of 268730368 is about 645.3157262839.

The spelling of 268730368 in words is "two hundred sixty-eight million, seven hundred thirty thousand, three hundred sixty-eight".

Divisors: 1 2 4 8 16 32 59 64 118 128 139 236 256 278 472 512 556 944 1024 1112 1888 2048 2224 3776 4096 4448 7552 8192 8201 8896 15104 16384 16402 17792 30208 32768 32804 35584 60416 65608 71168 120832 131216 142336 241664 262432 284672 483328 524864 569344 966656 1049728 1138688 1933312 2099456 2277376 4198912 4554752 8397824 16795648 33591296 67182592 134365184 268730368