Base | Representation |
---|---|
bin | 11100001001110111… |
… | …001011110000111000 |
3 | 2220000210111220110200 |
4 | 130021313023300320 |
5 | 443402414411440 |
6 | 21515414442200 |
7 | 2120063506344 |
oct | 341167136070 |
9 | 86023456420 |
10 | 30230232120 |
11 | 119031a5910 |
12 | 5a38063360 |
13 | 2b09ca5c1a |
14 | 166ac5a624 |
15 | bbde55c30 |
hex | 709dcbc38 |
30230232120 has 96 divisors (see below), whose sum is σ = 107179927920. Its totient is φ = 7328540160.
The previous prime is 30230232083. The next prime is 30230232139. The reversal of 30230232120 is 2123203203.
It is a happy number.
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 = 30230232093 and 30230232102.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3812989 + ... + 3820908.
Almost surely, 230230232120 is an apocalyptic number.
30230232120 is a gapful number since it is divisible by the number (30) formed by its first and last digit.
It is an amenable number.
30230232120 is an abundant number, since it is smaller than the sum of its proper divisors (76949695800).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
30230232120 is a wasteful number, since it uses less digits than its factorization.
30230232120 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 7633925 (or 7633918 counting only the distinct ones).
The product of its (nonzero) digits is 432, while the sum is 18.
Adding to 30230232120 its reverse (2123203203), we get a palindrome (32353435323).
The spelling of 30230232120 in words is "thirty billion, two hundred thirty million, two hundred thirty-two thousand, one hundred twenty".
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