Base | Representation |
---|---|
bin | 111101000110011011… |
… | …1010100111111100110 |
3 | 110112200102011010220011 |
4 | 1322030313110333212 |
5 | 4122210324124110 |
6 | 140140023400434 |
7 | 12323364266662 |
oct | 1721467247746 |
9 | 415612133804 |
10 | 131212333030 |
11 | 50712a39959 |
12 | 2151a8b311a |
13 | c4b10c675c |
14 | 64ca4c98a2 |
15 | 362e4d848a |
hex | 1e8cdd4fe6 |
131212333030 has 16 divisors (see below), whose sum is σ = 236591537760. Its totient is φ = 52393969152.
The previous prime is 131212333013. The next prime is 131212333037. The reversal of 131212333030 is 30333212131.
It is a junction number, because it is equal to n+sod(n) for n = 131212332992 and 131212333010.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (131212333037) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (23) of ones.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11364450 + ... + 11375989.
It is an arithmetic number, because the mean of its divisors is an integer number (14786971110).
Almost surely, 2131212333030 is an apocalyptic number.
131212333030 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
131212333030 is a deficient number, since it is larger than the sum of its proper divisors (105379204730).
131212333030 is a wasteful number, since it uses less digits than its factorization.
131212333030 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 22741023.
The product of its (nonzero) digits is 972, while the sum is 22.
Adding to 131212333030 its reverse (30333212131), we get a palindrome (161545545161).
The spelling of 131212333030 in words is "one hundred thirty-one billion, two hundred twelve million, three hundred thirty-three thousand, thirty".
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