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255012120 = 233251171907
BaseRepresentation
bin11110011001100…
…10110100011000
3122202211221212100
433030302310120
51010240341440
641145443400
76214365366
oct1714626430
9582757770
10255012120
11120a47420
12714a0560
1340aa8b5c
1425c22636
15175c4230
hexf332d18

255012120 has 192 divisors, whose sum is σ = 917879040. Its totient is φ = 60883200.

The previous prime is 255012119. The next prime is 255012133. The reversal of 255012120 is 21210552.

255012120 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 255012093 and 255012102.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 280707 + ... + 281613.

It is an arithmetic number, because the mean of its divisors is an integer number (4780620).

Almost surely, 2255012120 is an apocalyptic number.

255012120 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 255012120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (458939520).

255012120 is an abundant number, since it is smaller than the sum of its proper divisors (662866920).

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

255012120 is a wasteful number, since it uses less digits than its factorization.

255012120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1006 (or 999 counting only the distinct ones).

The product of its (nonzero) digits is 200, while the sum is 18.

The square root of 255012120 is about 15969.0989100826. The cubic root of 255012120 is about 634.1426170287.

Adding to 255012120 its reverse (21210552), we get a palindrome (276222672).

The spelling of 255012120 in words is "two hundred fifty-five million, twelve thousand, one hundred twenty".