Base | Representation |
---|---|
bin | 1011000110001100010011… |
… | …1000101011001101011111 |
3 | 1121012101221101102221211222 |
4 | 2301203010320223031133 |
5 | 3044400132114441111 |
6 | 41541022230403555 |
7 | 2366331260326442 |
oct | 261430470531537 |
9 | 47171841387758 |
10 | 12201010312031 |
11 | 3984468272422 |
12 | 14507798005bb |
13 | 6a6720119818 |
14 | 302763d33659 |
15 | 162599e117db |
hex | b18c4e2b35f |
12201010312031 has 16 divisors (see below), whose sum is σ = 12976890444000. Its totient is φ = 11431708723200.
The previous prime is 12201010312021. The next prime is 12201010312067. The reversal of 12201010312031 is 13021301010221.
It is a cyclic number.
It is not a de Polignac number, because 12201010312031 - 26 = 12201010311967 is a prime.
It is a super-2 number, since 2×122010103120312 (a number of 27 digits) contains 22 as substring.
It is a Harshad number since it is a multiple of its sum of digits (17).
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (12201010312021) 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 15 ways as a sum of consecutive naturals, for example, 1608305 + ... + 5195061.
It is an arithmetic number, because the mean of its divisors is an integer number (811055652750).
Almost surely, 212201010312031 is an apocalyptic number.
12201010312031 is a deficient number, since it is larger than the sum of its proper divisors (775880131969).
12201010312031 is a wasteful number, since it uses less digits than its factorization.
12201010312031 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 3587674.
The product of its (nonzero) digits is 72, while the sum is 17.
Adding to 12201010312031 its reverse (13021301010221), we get a palindrome (25222311322252).
The spelling of 12201010312031 in words is "twelve trillion, two hundred one billion, ten million, three hundred twelve thousand, thirty-one".
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