Search a number
-
+
256076800 = 2105271429
BaseRepresentation
bin11110100001101…
…10110000000000
3122211212001022221
433100312300000
51011023424200
641224340424
76226421410
oct1720666000
9584761287
10256076800
11121604321
1271914714
134108c645
142601c640
151773491a
hexf436c00

256076800 has 132 divisors (see below), whose sum is σ = 725948080. Its totient is φ = 87736320.

The previous prime is 256076791. The next prime is 256076869. The reversal of 256076800 is 8670652.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 178486 + ... + 179914.

Almost surely, 2256076800 is an apocalyptic number.

256076800 is a gapful number since it is divisible by the number (20) 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 256076800, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (362974040).

256076800 is an abundant number, since it is smaller than the sum of its proper divisors (469871280).

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

256076800 is a wasteful number, since it uses less digits than its factorization.

256076800 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1466 (or 1443 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 34.

The square root of 256076800 is about 16002.3998200270. The cubic root of 256076800 is about 635.0239104808.

The spelling of 256076800 in words is "two hundred fifty-six million, seventy-six thousand, eight hundred".

Divisors: 1 2 4 5 7 8 10 14 16 20 25 28 32 35 40 50 56 64 70 80 100 112 128 140 160 175 200 224 256 280 320 350 400 448 512 560 640 700 800 896 1024 1120 1280 1400 1429 1600 1792 2240 2560 2800 2858 3200 3584 4480 5120 5600 5716 6400 7145 7168 8960 10003 11200 11432 12800 14290 17920 20006 22400 22864 25600 28580 35725 35840 40012 44800 45728 50015 57160 71450 80024 89600 91456 100030 114320 142900 160048 179200 182912 200060 228640 250075 285800 320096 365824 400120 457280 500150 571600 640192 731648 800240 914560 1000300 1143200 1280384 1463296 1600480 1829120 2000600 2286400 2560768 3200960 3658240 4001200 4572800 5121536 6401920 7316480 8002400 9145600 10243072 12803840 16004800 18291200 25607680 32009600 36582400 51215360 64019200 128038400 256076800