Base | Representation |
---|---|
bin | 11110011001100… |
… | …10110000101001 |
3 | 122202211221112111 |
4 | 33030302300221 |
5 | 1010240340011 |
6 | 41145442321 |
7 | 6214364605 |
oct | 1714626051 |
9 | 582757474 |
10 | 255011881 |
11 | 120a47223 |
12 | 714a03a1 |
13 | 40aa8a07 |
14 | 25c22505 |
15 | 175c4121 |
hex | f332c29 |
255011881 has 8 divisors (see below), whose sum is σ = 263056520. Its totient is φ = 247027968.
The previous prime is 255011851. The next prime is 255011891. The reversal of 255011881 is 188110552.
255011881 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.
It can be written as a sum of positive squares in 4 ways, for example, as 67568400 + 187443481 = 8220^2 + 13691^2 .
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 255011881 - 27 = 255011753 is a prime.
It is a super-2 number, since 2×2550118812 = 130062118902316322, which contains 22 as substring.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (255011851) 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, 6576 + ... + 23521.
It is an arithmetic number, because the mean of its divisors is an integer number (32882065).
Almost surely, 2255011881 is an apocalyptic number.
It is an amenable number.
255011881 is a deficient number, since it is larger than the sum of its proper divisors (8044639).
255011881 is a wasteful number, since it uses less digits than its factorization.
255011881 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 30363.
The product of its (nonzero) digits is 3200, while the sum is 31.
The square root of 255011881 is about 15969.0914268784. The cubic root of 255011881 is about 634.1424189203.
The spelling of 255011881 in words is "two hundred fifty-five million, eleven thousand, eight hundred eighty-one".
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