Base | Representation |
---|---|
bin | 111101000000101111… |
… | …0010000101010010110 |
3 | 110112012002112012112222 |
4 | 1322001132100222112 |
5 | 4121312412243220 |
6 | 140105035142342 |
7 | 12315553633502 |
oct | 1720136205226 |
9 | 415162465488 |
10 | 131021212310 |
11 | 5062507104a |
12 | 214868a49b2 |
13 | c48062ab81 |
14 | 64acd79302 |
15 | 361c834e25 |
hex | 1e81790a96 |
131021212310 has 8 divisors (see below), whose sum is σ = 235838182176. Its totient is φ = 52408484920.
The previous prime is 131021212297. The next prime is 131021212369. The reversal of 131021212310 is 13212120131.
It is a sphenic number, since it is the product of 3 distinct primes.
It is a super-2 number, since 2×1310212123102 (a number of 23 digits) contains 22 as substring.
It is a congruent number.
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (17) of ones.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6551060606 + ... + 6551060625.
It is an arithmetic number, because the mean of its divisors is an integer number (29479772772).
Almost surely, 2131021212310 is an apocalyptic number.
131021212310 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
131021212310 is a deficient number, since it is larger than the sum of its proper divisors (104816969866).
131021212310 is a wasteful number, since it uses less digits than its factorization.
131021212310 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 13102121238.
The product of its (nonzero) digits is 72, while the sum is 17.
Adding to 131021212310 its reverse (13212120131), we get a palindrome (144233332441).
The spelling of 131021212310 in words is "one hundred thirty-one billion, twenty-one million, two hundred twelve thousand, three hundred ten".
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