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255252745 = 51119244261
BaseRepresentation
bin11110011011011…
…01100100001001
3122210022011221101
433031231210021
51010321041440
641154541401
76216420046
oct1715554411
9583264841
10255252745
111210a1190
1271597861
1340b61537
1425c861cd
151762069a
hexf36d909

255252745 has 16 divisors (see below), whose sum is σ = 351737280. Its totient is φ = 175867200.

The previous prime is 255252743. The next prime is 255252763. The reversal of 255252745 is 547252552.

It is not a de Polignac number, because 255252745 - 21 = 255252743 is a prime.

It is not an unprimeable number, because it can be changed into a prime (255252743) 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, 121086 + ... + 123175.

It is an arithmetic number, because the mean of its divisors is an integer number (21983580).

Almost surely, 2255252745 is an apocalyptic number.

It is an amenable number.

255252745 is a deficient number, since it is larger than the sum of its proper divisors (96484535).

255252745 is a wasteful number, since it uses less digits than its factorization.

255252745 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 244296.

The product of its digits is 140000, while the sum is 37.

The square root of 255252745 is about 15976.6312156224. The cubic root of 255252745 is about 634.3420096411.

The spelling of 255252745 in words is "two hundred fifty-five million, two hundred fifty-two thousand, seven hundred forty-five".

Divisors: 1 5 11 19 55 95 209 1045 244261 1221305 2686871 4640959 13434355 23204795 51050549 255252745