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255020241 = 3727774373
BaseRepresentation
bin11110011001101…
…00110011010001
3122202212101000010
433030310303101
51010241121431
641145545133
76214431150
oct1714646321
9582771003
10255020241
11120a52533
12714a51a9
1340aac768
1425c25597
15175c6846
hexf334cd1

255020241 has 16 divisors (see below), whose sum is σ = 388831104. Its totient is φ = 145640064.

The previous prime is 255020221. The next prime is 255020257. The reversal of 255020241 is 142020552.

It is a happy number.

It is not a de Polignac number, because 255020241 - 26 = 255020177 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is not an unprimeable number, because it can be changed into a prime (255020221) 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, 56131 + ... + 60503.

It is an arithmetic number, because the mean of its divisors is an integer number (24301944).

Almost surely, 2255020241 is an apocalyptic number.

255020241 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

255020241 is a deficient number, since it is larger than the sum of its proper divisors (133810863).

255020241 is a wasteful number, since it uses less digits than its factorization.

255020241 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7160.

The product of its (nonzero) digits is 800, while the sum is 21.

The square root of 255020241 is about 15969.3531803890. The cubic root of 255020241 is about 634.1493484964.

Adding to 255020241 its reverse (142020552), we get a palindrome (397040793).

It can be divided in two parts, 2550 and 20241, that added together give a triangular number (22791 = T213).

The spelling of 255020241 in words is "two hundred fifty-five million, twenty thousand, two hundred forty-one".

Divisors: 1 3 7 21 2777 4373 8331 13119 19439 30611 58317 91833 12143821 36431463 85006747 255020241