Base | Representation |
---|---|
bin | 11101001101101100… |
… | …011101010001010010 |
3 | 2222222002221021020020 |
4 | 131031230131101102 |
5 | 1003220234132210 |
6 | 22224350524310 |
7 | 2160222621633 |
oct | 351554352122 |
9 | 88862837206 |
10 | 31368270930 |
11 | 12337631257 |
12 | 60b5206696 |
13 | 2c5b9b4879 |
14 | 173805b88a |
15 | c38d02770 |
hex | 74db1d452 |
31368270930 has 16 divisors (see below), whose sum is σ = 75283850304. Its totient is φ = 8364872240.
The previous prime is 31368270929. The next prime is 31368270961. The reversal of 31368270930 is 3907286313.
It is a happy number.
It is a super-2 number, since 2×313682709302 (a number of 22 digits) contains 22 as substring.
It is an unprimeable number.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 522804486 + ... + 522804545.
It is an arithmetic number, because the mean of its divisors is an integer number (4705240644).
Almost surely, 231368270930 is an apocalyptic number.
31368270930 is a gapful number since it is divisible by the number (30) formed by its first and last digit.
31368270930 is an abundant number, since it is smaller than the sum of its proper divisors (43915579374).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
31368270930 is a wasteful number, since it uses less digits than its factorization.
31368270930 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 1045609041.
The product of its (nonzero) digits is 163296, while the sum is 42.
The spelling of 31368270930 in words is "thirty-one billion, three hundred sixty-eight million, two hundred seventy thousand, nine hundred thirty".
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