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255143251 = 11190712163
BaseRepresentation
bin11110011010100…
…10110101010011
3122210002121202001
433031102311103
51010304041001
641152334431
76215452606
oct1715226523
9583077661
10255143251
111210269a0
1271544417
1340b2374c
1425c5833d
15175ed001
hexf352d53

255143251 has 8 divisors (see below), whose sum is σ = 278506944. Its totient is φ = 231807720.

The previous prime is 255143221. The next prime is 255143269. The reversal of 255143251 is 152341552.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 255143251 - 29 = 255142739 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (255143221) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14896 + ... + 27058.

It is an arithmetic number, because the mean of its divisors is an integer number (34813368).

Almost surely, 2255143251 is an apocalyptic number.

255143251 is a deficient number, since it is larger than the sum of its proper divisors (23363693).

255143251 is a wasteful number, since it uses less digits than its factorization.

255143251 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14081.

The product of its digits is 6000, while the sum is 28.

The square root of 255143251 is about 15973.2041557103. The cubic root of 255143251 is about 634.2512935709.

The spelling of 255143251 in words is "two hundred fifty-five million, one hundred forty-three thousand, two hundred fifty-one".

Divisors: 1 11 1907 12163 20977 133793 23194841 255143251