Base | Representation |
---|---|
bin | 10010100111001… |
… | …000111101110111 |
3 | 210202112221210101 |
4 | 102213020331313 |
5 | 1114414001411 |
6 | 50552334531 |
7 | 10511040346 |
oct | 2247107567 |
9 | 722487711 |
10 | 312250231 |
11 | 150291247 |
12 | 886a4447 |
13 | 4c8c9967 |
14 | 2d681b5d |
15 | 1c62d8c1 |
hex | 129c8f77 |
312250231 has 8 divisors (see below), whose sum is σ = 326068704. Its totient is φ = 298452000.
The previous prime is 312250193. The next prime is 312250241. The reversal of 312250231 is 132052213.
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 312250231 - 225 = 278695799 is a prime.
It is a super-3 number, since 3×3122502313 (a number of 26 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.
It is a Duffinian number.
It is a junction number, because it is equal to n+sod(n) for n = 312250199 and 312250208.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (312250241) 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 7 ways as a sum of consecutive naturals, for example, 32481 + ... + 40981.
It is an arithmetic number, because the mean of its divisors is an integer number (40758588).
Almost surely, 2312250231 is an apocalyptic number.
312250231 is a deficient number, since it is larger than the sum of its proper divisors (13818473).
312250231 is a wasteful number, since it uses less digits than its factorization.
312250231 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 10121.
The product of its (nonzero) digits is 360, while the sum is 19.
The square root of 312250231 is about 17670.6035833528. The cubic root of 312250231 is about 678.4235619938.
It can be divided in two parts, 312250 and 231, that added together give a square (312481 = 5592).
The spelling of 312250231 in words is "three hundred twelve million, two hundred fifty thousand, two hundred thirty-one".
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