Base | Representation |
---|---|
bin | 1011000110011100100… |
… | …11010101110111001111 |
3 | 1100110111200211010222102 |
4 | 11203032103111313033 |
5 | 22222121041030311 |
6 | 451115433505315 |
7 | 36361621022063 |
oct | 5431623256717 |
9 | 1313450733872 |
10 | 381418298831 |
11 | 137838760279 |
12 | 61b0827223b |
13 | 29c76a4b1ab |
14 | 146643d3aa3 |
15 | 9dc543943b |
hex | 58ce4d5dcf |
381418298831 has 8 divisors (see below), whose sum is σ = 399709870560. Its totient is φ = 363269074432.
The previous prime is 381418298761. The next prime is 381418298837. The reversal of 381418298831 is 138892814183.
It is a sphenic number, since it is the product of 3 distinct primes.
It is not a de Polignac number, because 381418298831 - 214 = 381418282447 is a prime.
It is a super-2 number, since 2×3814182988312 (a number of 24 digits) contains 22 as substring.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (381418298837) 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, 35581346 + ... + 35592063.
It is an arithmetic number, because the mean of its divisors is an integer number (49963733820).
Almost surely, 2381418298831 is an apocalyptic number.
381418298831 is a deficient number, since it is larger than the sum of its proper divisors (18291571729).
381418298831 is a wasteful number, since it uses less digits than its factorization.
381418298831 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 71173665.
The product of its digits is 2654208, while the sum is 56.
The spelling of 381418298831 in words is "three hundred eighty-one billion, four hundred eighteen million, two hundred ninety-eight thousand, eight hundred thirty-one".
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