Base | Representation |
---|---|
bin | 111011011111… |
… | …1111111100100 |
3 | 2011200212122101 |
4 | 1312333333210 |
5 | 30441220413 |
6 | 3032341444 |
7 | 526103560 |
oct | 166777744 |
9 | 64625571 |
10 | 31195108 |
11 | 1667738a |
12 | a544884 |
13 | 6602c59 |
14 | 42006a0 |
15 | 2b12edd |
hex | 1dbffe4 |
31195108 has 12 divisors (see below), whose sum is σ = 62390272. Its totient is φ = 13369320.
The previous prime is 31195027. The next prime is 31195117. The reversal of 31195108 is 80159113.
31195108 is an admirable number.
It is a Harshad number since it is a multiple of its sum of digits (28), and also a Moran number because the ratio is a prime number: 1114111 = 31195108 / (3 + 1 + 1 + 9 + 5 + 1 + 0 + 8).
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (19) of ones.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 557028 + ... + 557083.
Almost surely, 231195108 is an apocalyptic number.
It is an amenable number.
31195108 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
31195108 is a wasteful number, since it uses less digits than its factorization.
31195108 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 1114122 (or 1114120 counting only the distinct ones).
The product of its (nonzero) digits is 1080, while the sum is 28.
The square root of 31195108 is about 5585.2580960955. The cubic root of 31195108 is about 314.7957288210.
31195108 divided by its sum of digits (28) gives a palindrome (1114111).
The spelling of 31195108 in words is "thirty-one million, one hundred ninety-five thousand, one hundred eight".
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