Base | Representation |
---|---|
bin | 11110011100110… |
… | …10100011100111 |
3 | 122210122112201210 |
4 | 33032122203213 |
5 | 1010342441111 |
6 | 41202522503 |
7 | 6221115243 |
oct | 1716324347 |
9 | 583575653 |
10 | 255437031 |
11 | 121207693 |
12 | 71666433 |
13 | 40bc7395 |
14 | 25cd3423 |
15 | 1765a0a6 |
hex | f39a8e7 |
255437031 has 32 divisors (see below), whose sum is σ = 355449600. Its totient is φ = 163088640.
The previous prime is 255437029. The next prime is 255437047. The reversal of 255437031 is 130734552.
It is not a de Polignac number, because 255437031 - 21 = 255437029 is a prime.
It is a super-5 number, since 5×2554370315 (a number of 43 digits) contains 55555 as substring. Note that it is a super-d number also for d = 2.
It is a self number, because there is not a number n which added to its sum of digits gives 255437031.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (255437081) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (17) of ones.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1949836 + ... + 1949966.
It is an arithmetic number, because the mean of its divisors is an integer number (11107800).
Almost surely, 2255437031 is an apocalyptic number.
255437031 is a deficient number, since it is larger than the sum of its proper divisors (100012569).
255437031 is a wasteful number, since it uses less digits than its factorization.
255437031 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 399.
The product of its (nonzero) digits is 12600, while the sum is 30.
The square root of 255437031 is about 15982.3975360395. The cubic root of 255437031 is about 634.4946325246.
The spelling of 255437031 in words is "two hundred fifty-five million, four hundred thirty-seven thousand, thirty-one".
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