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255211000 = 23531123201
BaseRepresentation
bin11110011011000…
…11010111111000
3122210020001200021
433031203113320
51010313223000
641154020224
76216154252
oct1715432770
9583201607
10255211000
11121072890
1271577674
1340b48535
1425c74cd2
151761311a
hexf3635f8

255211000 has 64 divisors (see below), whose sum is σ = 651512160. Its totient is φ = 92800000.

The previous prime is 255210979. The next prime is 255211009. The reversal of 255211000 is 112552.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (255211009) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 601 + ... + 22600.

Almost surely, 2255211000 is an apocalyptic number.

255211000 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 255211000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (325756080).

255211000 is an abundant number, since it is smaller than the sum of its proper divisors (396301160).

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

255211000 is a wasteful number, since it uses less digits than its factorization.

255211000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23233 (or 23219 counting only the distinct ones).

The product of its (nonzero) digits is 100, while the sum is 16.

The square root of 255211000 is about 15975.3247228343. The cubic root of 255211000 is about 634.3074268581.

Adding to 255211000 its reverse (112552), we get a palindrome (255323552).

The spelling of 255211000 in words is "two hundred fifty-five million, two hundred eleven thousand".

Divisors: 1 2 4 5 8 10 11 20 22 25 40 44 50 55 88 100 110 125 200 220 250 275 440 500 550 1000 1100 1375 2200 2750 5500 11000 23201 46402 92804 116005 185608 232010 255211 464020 510422 580025 928040 1020844 1160050 1276055 2041688 2320100 2552110 2900125 4640200 5104220 5800250 6380275 10208440 11600500 12760550 23201000 25521100 31901375 51042200 63802750 127605500 255211000