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255311315 = 5721042087
BaseRepresentation
bin11110011011110…
…11110111010011
3122210102011021122
433031323313103
51010324430230
641200112455
76220052600
oct1715736723
9583364248
10255311315
11121131196
127160572b
1340b820ac
1425c9d6a7
1517632be5
hexf37bdd3

255311315 has 12 divisors (see below), whose sum is σ = 356394096. Its totient is φ = 175070448.

The previous prime is 255311281. The next prime is 255311317. The reversal of 255311315 is 513113552.

It is a happy number.

It is not a de Polignac number, because 255311315 - 210 = 255310291 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (255311317) 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, 520799 + ... + 521288.

It is an arithmetic number, because the mean of its divisors is an integer number (29699508).

Almost surely, 2255311315 is an apocalyptic number.

255311315 is a deficient number, since it is larger than the sum of its proper divisors (101082781).

255311315 is a wasteful number, since it uses less digits than its factorization.

255311315 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1042106 (or 1042099 counting only the distinct ones).

The product of its digits is 2250, while the sum is 26.

The square root of 255311315 is about 15978.4641001568. The cubic root of 255311315 is about 634.3905243922.

Adding to 255311315 its reverse (513113552), we get a palindrome (768424867).

The spelling of 255311315 in words is "two hundred fifty-five million, three hundred eleven thousand, three hundred fifteen".

Divisors: 1 5 7 35 49 245 1042087 5210435 7294609 36473045 51062263 255311315