Base | Representation |
---|---|
bin | 11100010100101100… |
… | …111111110010101100 |
3 | 2220111110202022102020 |
4 | 130110230333302230 |
5 | 444241000023040 |
6 | 21545433030140 |
7 | 2124432451464 |
oct | 342454776254 |
9 | 86443668366 |
10 | 30412111020 |
11 | 11996931155 |
12 | 5a88b55350 |
13 | 2b38887085 |
14 | 1687082ba4 |
15 | bcedd0cd0 |
hex | 714b3fcac |
30412111020 has 48 divisors (see below), whose sum is σ = 85172048640. Its totient is φ = 8108168896.
The previous prime is 30412111013. The next prime is 30412111021. The reversal of 30412111020 is 2011121403.
It is a Harshad number since it is a multiple of its sum of digits (15).
It is not an unprimeable number, because it can be changed into a prime (30412111021) by changing a digit.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 243619 + ... + 346661.
It is an arithmetic number, because the mean of its divisors is an integer number (1774417680).
Almost surely, 230412111020 is an apocalyptic number.
30412111020 is a gapful number since it is divisible by the number (30) formed by its first and last digit.
It is an amenable number.
30412111020 is an abundant number, since it is smaller than the sum of its proper divisors (54759937620).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
30412111020 is a wasteful number, since it uses less digits than its factorization.
30412111020 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 107974 (or 107972 counting only the distinct ones).
The product of its (nonzero) digits is 48, while the sum is 15.
Adding to 30412111020 its reverse (2011121403), we get a palindrome (32423232423).
The spelling of 30412111020 in words is "thirty billion, four hundred twelve million, one hundred eleven thousand, twenty".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.080 sec. • engine limits •