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255143252 = 227134316301
BaseRepresentation
bin11110011010100…
…10110101010100
3122210002121202002
433031102311110
51010304041002
641152334432
76215452610
oct1715226524
9583077662
10255143252
111210269a1
1271544418
1340b23750
1425c58340
15175ed002
hexf352d54

255143252 has 48 divisors (see below), whose sum is σ = 562353792. Its totient is φ = 98582400.

The previous prime is 255143221. The next prime is 255143269. The reversal of 255143252 is 252341552.

It is a super-2 number, since 2×2551432522 = 130196158082271008, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7502 + ... + 23802.

It is an arithmetic number, because the mean of its divisors is an integer number (11715704).

Almost surely, 2255143252 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 255143252, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (281176896).

255143252 is an abundant number, since it is smaller than the sum of its proper divisors (307210540).

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

255143252 is a wasteful number, since it uses less digits than its factorization.

255143252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16368 (or 16366 counting only the distinct ones).

The product of its digits is 12000, while the sum is 29.

The square root of 255143252 is about 15973.2041870127. The cubic root of 255143252 is about 634.2512943995.

The spelling of 255143252 in words is "two hundred fifty-five million, one hundred forty-three thousand, two hundred fifty-two".

Divisors: 1 2 4 7 13 14 26 28 43 52 86 91 172 182 301 364 559 602 1118 1204 2236 3913 7826 15652 16301 32602 65204 114107 211913 228214 423826 456428 700943 847652 1401886 1483391 2803772 2966782 4906601 5933564 9112259 9813202 18224518 19626404 36449036 63785813 127571626 255143252