Base | Representation |
---|---|
bin | 10110101111100101… |
… | …01011001010011110 |
3 | 1011111221212112012012 |
4 | 23113302223022132 |
5 | 200001320220110 |
6 | 5335341311222 |
7 | 611404002446 |
oct | 132762531236 |
9 | 34457775165 |
10 | 12210320030 |
11 | 51a6453187 |
12 | 2449265512 |
13 | 11c78c324c |
14 | 83b929126 |
15 | 4b6e67905 |
hex | 2d7cab29e |
12210320030 has 16 divisors (see below), whose sum is σ = 21980510784. Its totient is φ = 4883698080.
The previous prime is 12210319997. The next prime is 12210320039. The reversal of 12210320030 is 3002301221.
It is a happy number.
It is a Curzon number.
It is a junction number, because it is equal to n+sod(n) for n = 12210319987 and 12210320014.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (12210320039) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 81824 + ... + 176396.
It is an arithmetic number, because the mean of its divisors is an integer number (1373781924).
Almost surely, 212210320030 is an apocalyptic number.
12210320030 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
12210320030 is a deficient number, since it is larger than the sum of its proper divisors (9770190754).
12210320030 is a wasteful number, since it uses less digits than its factorization.
12210320030 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 107491.
The product of its (nonzero) digits is 72, while the sum is 14.
Adding to 12210320030 its reverse (3002301221), we get a palindrome (15212621251).
The spelling of 12210320030 in words is "twelve billion, two hundred ten million, three hundred twenty thousand, thirty".
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