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255530652 = 223135927763
BaseRepresentation
bin11110011101100…
…01011010011100
3122210211022011020
433032301122130
51010403440102
641204524140
76221655216
oct1716613234
9583738136
10255530652
11121270a63
12716b0650
1340c2ab90
1425d195b6
1517677bbc
hexf3b169c

255530652 has 48 divisors (see below), whose sum is σ = 653009280. Its totient is φ = 77289408.

The previous prime is 255530641. The next prime is 255530657. The reversal of 255530652 is 256035552.

It is a super-2 number, since 2×2555306522 = 130591828223090208, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (255530657) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4678 + ... + 23085.

It is an arithmetic number, because the mean of its divisors is an integer number (13604360).

Almost surely, 2255530652 is an apocalyptic number.

It is an amenable number.

255530652 is an abundant number, since it is smaller than the sum of its proper divisors (397478628).

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

255530652 is a wasteful number, since it uses less digits than its factorization.

255530652 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27842 (or 27840 counting only the distinct ones).

The product of its (nonzero) digits is 45000, while the sum is 33.

The square root of 255530652 is about 15985.3261461879. The cubic root of 255530652 is about 634.5721399061.

The spelling of 255530652 in words is "two hundred fifty-five million, five hundred thirty thousand, six hundred fifty-two".

Divisors: 1 2 3 4 6 12 13 26 39 52 59 78 118 156 177 236 354 708 767 1534 2301 3068 4602 9204 27763 55526 83289 111052 166578 333156 360919 721838 1082757 1443676 1638017 2165514 3276034 4331028 4914051 6552068 9828102 19656204 21294221 42588442 63882663 85176884 127765326 255530652