Base | Representation |
---|---|
bin | 11100111000100110… |
… | …001011010110010000 |
3 | 2222001102212211200100 |
4 | 130320212023112100 |
5 | 1002004130144440 |
6 | 22125304052400 |
7 | 2145364140543 |
oct | 347046132620 |
9 | 88042784610 |
10 | 31014303120 |
11 | 12175846a79 |
12 | 6016764100 |
13 | 2c0356c668 |
14 | 170303a85a |
15 | c17bd3230 |
hex | 73898b590 |
31014303120 has 60 divisors (see below), whose sum is σ = 104156370396. Its totient is φ = 8270480640.
The previous prime is 31014303113. The next prime is 31014303157. The reversal of 31014303120 is 2130341013.
31014303120 is a `hidden beast` number, since 310 + 1 + 43 + 0 + 312 + 0 = 666.
It can be written as a sum of positive squares in 2 ways, for example, as 4832474256 + 26181828864 = 69516^2 + 161808^2 .
It is a tau number, because it is divible by the number of its divisors (60).
It is a Harshad number since it is a multiple of its sum of digits (18).
It is a junction number, because it is equal to n+sod(n) for n = 31014303093 and 31014303102.
It is an unprimeable number.
It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 21536991 + ... + 21538430.
Almost surely, 231014303120 is an apocalyptic number.
31014303120 is a gapful number since it is divisible by the number (30) formed by its first and last digit.
It is an amenable number.
31014303120 is an abundant number, since it is smaller than the sum of its proper divisors (73142067276).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
31014303120 is a wasteful number, since it uses less digits than its factorization.
31014303120 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 43075440 (or 43075431 counting only the distinct ones).
The product of its (nonzero) digits is 216, while the sum is 18.
Adding to 31014303120 its reverse (2130341013), we get a palindrome (33144644133).
The spelling of 31014303120 in words is "thirty-one billion, fourteen million, three hundred three thousand, one hundred twenty".
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