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255112520 = 235131273863
BaseRepresentation
bin11110011010010…
…11010101001000
3122210001001120212
433031023111020
51010302100040
641151540252
76215264165
oct1715132510
9583031525
10255112520
111210058a3
127152a688
1340b12770
1425c4b06c
15175e3d65
hexf34b548

255112520 has 64 divisors (see below), whose sum is σ = 623185920. Its totient is φ = 93429504.

The previous prime is 255112513. The next prime is 255112577. The reversal of 255112520 is 25211552.

255112520 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

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, 64109 + ... + 67971.

It is an arithmetic number, because the mean of its divisors is an integer number (9737280).

Almost surely, 2255112520 is an apocalyptic number.

255112520 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 255112520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (311592960).

255112520 is an abundant number, since it is smaller than the sum of its proper divisors (368073400).

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

255112520 is a wasteful number, since it uses less digits than its factorization.

255112520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4014 (or 4010 counting only the distinct ones).

The product of its (nonzero) digits is 1000, while the sum is 23.

The square root of 255112520 is about 15972.2421719682. The cubic root of 255112520 is about 634.2258281915.

The spelling of 255112520 in words is "two hundred fifty-five million, one hundred twelve thousand, five hundred twenty".

Divisors: 1 2 4 5 8 10 13 20 26 40 52 65 104 127 130 254 260 508 520 635 1016 1270 1651 2540 3302 3863 5080 6604 7726 8255 13208 15452 16510 19315 30904 33020 38630 50219 66040 77260 100438 154520 200876 251095 401752 490601 502190 981202 1004380 1962404 2008760 2453005 3924808 4906010 6377813 9812020 12755626 19624040 25511252 31889065 51022504 63778130 127556260 255112520