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255412039 = 1312719457
BaseRepresentation
bin11110011100101…
…00011101000111
3122210121021110011
433032110131013
51010341141124
641202211051
76220652341
oct1716243507
9583537404
10255412039
1112119a933
1271653a87
1340bb8bac
1425cc8291
1517652994
hexf394747

255412039 has 4 divisors (see below), whose sum is σ = 255444624. Its totient is φ = 255379456.

The previous prime is 255412021. The next prime is 255412043. The reversal of 255412039 is 930214552.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 255412039 - 223 = 247023431 is a prime.

It is a super-2 number, since 2×2554120392 = 130470619332275042, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 255412039.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (255412099) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3399 + ... + 22855.

It is an arithmetic number, because the mean of its divisors is an integer number (63861156).

Almost surely, 2255412039 is an apocalyptic number.

255412039 is a deficient number, since it is larger than the sum of its proper divisors (32585).

255412039 is a wasteful number, since it uses less digits than its factorization.

255412039 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32584.

The product of its (nonzero) digits is 10800, while the sum is 31.

The square root of 255412039 is about 15981.6156567476. The cubic root of 255412039 is about 634.4739388309.

The spelling of 255412039 in words is "two hundred fifty-five million, four hundred twelve thousand, thirty-nine".

Divisors: 1 13127 19457 255412039