Base | Representation |
---|---|
bin | 110100100100110101101110… |
… | …101111010011110011010111 |
3 | 1010022201101002010022011220210 |
4 | 310210311232233103303113 |
5 | 220301433031111213031 |
6 | 2135441333503100503 |
7 | 66463550155212525 |
oct | 6444655657236327 |
9 | 1108641063264823 |
10 | 231230012210391 |
11 | 6774a108814357 |
12 | 21b25b132a1733 |
13 | 9c03b86a648ac |
14 | 4115841401315 |
15 | 1baec53790746 |
hex | d24d6ebd3cd7 |
231230012210391 has 8 divisors (see below), whose sum is σ = 308306950095744. Its totient is φ = 154153207899320.
The previous prime is 231230012210377. The next prime is 231230012210437. The reversal of 231230012210391 is 193012210032132.
It is a sphenic number, since it is the product of 3 distinct primes.
It is a cyclic number.
It is not a de Polignac number, because 231230012210391 - 29 = 231230012209879 is a prime.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (231230012210371) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (29) of ones.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 29282025 + ... + 36330386.
It is an arithmetic number, because the mean of its divisors is an integer number (38538368761968).
Almost surely, 2231230012210391 is an apocalyptic number.
231230012210391 is a deficient number, since it is larger than the sum of its proper divisors (77076937885353).
231230012210391 is a wasteful number, since it uses less digits than its factorization.
231230012210391 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 66787141.
The product of its (nonzero) digits is 3888, while the sum is 30.
The spelling of 231230012210391 in words is "two hundred thirty-one trillion, two hundred thirty billion, twelve million, two hundred ten thousand, three hundred ninety-one".
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