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256426200 = 233252433313
BaseRepresentation
bin11110100100011…
…00000011011000
3122212111210121200
433102030003120
51011121114300
641240034200
76232405152
oct1722140330
9585453550
10256426200
11121822888
1271a62960
13411826a4
14260adad2
15177a3200
hexf48c0d8

256426200 has 144 divisors (see below), whose sum is σ = 881457720. Its totient is φ = 66769920.

The previous prime is 256426111. The next prime is 256426201. The reversal of 256426200 is 2624652.

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (256426201) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 75744 + ... + 79056.

Almost surely, 2256426200 is an apocalyptic number.

256426200 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 256426200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (440728860).

256426200 is an abundant number, since it is smaller than the sum of its proper divisors (625031520).

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

256426200 is a wasteful number, since it uses less digits than its factorization.

256426200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3378 (or 3366 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 27.

The square root of 256426200 is about 16013.3132112002. The cubic root of 256426200 is about 635.3125953836.

It can be divided in two parts, 25 and 6426200, that added together give a square (6426225 = 25352).

The spelling of 256426200 in words is "two hundred fifty-six million, four hundred twenty-six thousand, two hundred".

Divisors: 1 2 3 4 5 6 8 9 10 12 15 18 20 24 25 30 36 40 43 45 50 60 72 75 86 90 100 120 129 150 172 180 200 215 225 258 300 344 360 387 430 450 516 600 645 774 860 900 1032 1075 1290 1548 1720 1800 1935 2150 2580 3096 3225 3313 3870 4300 5160 6450 6626 7740 8600 9675 9939 12900 13252 15480 16565 19350 19878 25800 26504 29817 33130 38700 39756 49695 59634 66260 77400 79512 82825 99390 119268 132520 142459 149085 165650 198780 238536 248475 284918 298170 331300 397560 427377 496950 569836 596340 662600 712295 745425 854754 993900 1139672 1192680 1282131 1424590 1490850 1709508 1987800 2136885 2564262 2849180 2981700 3419016 3561475 4273770 5128524 5698360 5963400 6410655 7122950 8547540 10257048 10684425 12821310 14245900 17095080 21368850 25642620 28491800 32053275 42737700 51285240 64106550 85475400 128213100 256426200