Base | Representation |
---|---|
bin | 111011001100… |
… | …1101100010011 |
3 | 2011101220102222 |
4 | 1312121230103 |
5 | 30421210402 |
6 | 3025131255 |
7 | 524551313 |
oct | 166315423 |
9 | 64356388 |
10 | 31038227 |
11 | 1657a530 |
12 | a489b2b |
13 | 657971c |
14 | 419d443 |
15 | 2ad17a2 |
hex | 1d99b13 |
31038227 has 8 divisors (see below), whose sum is σ = 34775472. Its totient is φ = 27453600.
The previous prime is 31038211. The next prime is 31038233. The reversal of 31038227 is 72283013.
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 31038227 - 24 = 31038211 is a prime.
It is a Duffinian number.
It is a junction number, because it is equal to n+sod(n) for n = 31038196 and 31038205.
It is not an unprimeable number, because it can be changed into a prime (31038827) 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, 37724 + ... + 38537.
It is an arithmetic number, because the mean of its divisors is an integer number (4346934).
Almost surely, 231038227 is an apocalyptic number.
31038227 is a gapful number since it is divisible by the number (37) formed by its first and last digit.
31038227 is a deficient number, since it is larger than the sum of its proper divisors (3737245).
31038227 is a wasteful number, since it uses less digits than its factorization.
31038227 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 76309.
The product of its (nonzero) digits is 2016, while the sum is 26.
The square root of 31038227 is about 5571.1961911245. The cubic root of 31038227 is about 314.2671364560.
The spelling of 31038227 in words is "thirty-one million, thirty-eight thousand, two hundred twenty-seven".
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