Base | Representation |
---|---|
bin | 11100001010000110… |
… | …010111011100110000 |
3 | 2220001002000010000222 |
4 | 130022012113130300 |
5 | 443404424242034 |
6 | 21520040032212 |
7 | 2120142364043 |
oct | 341206273460 |
9 | 86032003028 |
10 | 30234212144 |
11 | 11905474094 |
12 | 5a39462668 |
13 | 2b0aa6a676 |
14 | 166b5b4c5a |
15 | bbe49012e |
hex | 70a197730 |
30234212144 has 20 divisors (see below), whose sum is σ = 58621869240. Its totient is φ = 15105987840.
The previous prime is 30234212117. The next prime is 30234212147. The reversal of 30234212144 is 44121243203.
It is not an unprimeable number, because it can be changed into a prime (30234212147) by changing a digit.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 672434 + ... + 715985.
It is an arithmetic number, because the mean of its divisors is an integer number (2931093462).
Almost surely, 230234212144 is an apocalyptic number.
It is an amenable number.
30234212144 is a deficient number, since it is larger than the sum of its proper divisors (28387657096).
30234212144 is a wasteful number, since it uses less digits than its factorization.
30234212144 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 1389788 (or 1389782 counting only the distinct ones).
The product of its (nonzero) digits is 4608, while the sum is 26.
Adding to 30234212144 its reverse (44121243203), we get a palindrome (74355455347).
The spelling of 30234212144 in words is "thirty billion, two hundred thirty-four million, two hundred twelve thousand, one hundred forty-four".
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