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255124242 = 235524947
BaseRepresentation
bin11110011010011…
…10001100010010
3122210001122200000
433031032030102
51010302433432
641152110430
76215343312
oct1715161422
9583048600
10255124242
1112101368a
1271535416
1340b17bb9
1425c51442
15175e757c
hexf34e312

255124242 has 24 divisors (see below), whose sum is σ = 573243216. Its totient is φ = 85041252.

The previous prime is 255124241. The next prime is 255124271. The reversal of 255124242 is 242421552.

255124242 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 (27).

It is not an unprimeable number, because it can be changed into a prime (255124241) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 261988 + ... + 262959.

It is an arithmetic number, because the mean of its divisors is an integer number (23885134).

Almost surely, 2255124242 is an apocalyptic number.

255124242 is an abundant number, since it is smaller than the sum of its proper divisors (318118974).

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

255124242 is an equidigital number, since it uses as much as digits as its factorization.

255124242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 524964 (or 524952 counting only the distinct ones).

The product of its digits is 6400, while the sum is 27.

The square root of 255124242 is about 15972.6091168600. The cubic root of 255124242 is about 634.2355419200.

Adding to 255124242 its reverse (242421552), we get a palindrome (497545794).

The spelling of 255124242 in words is "two hundred fifty-five million, one hundred twenty-four thousand, two hundred forty-two".

Divisors: 1 2 3 6 9 18 27 54 81 162 243 486 524947 1049894 1574841 3149682 4724523 9449046 14173569 28347138 42520707 85041414 127562121 255124242