Base | Representation |
---|---|
bin | 1011111010011111… |
… | …00111001100111111 |
3 | 121111202121020101220 |
4 | 11331033213030333 |
5 | 101044412241111 |
6 | 2534405004423 |
7 | 314334622326 |
oct | 57517471477 |
9 | 17452536356 |
10 | 6396212031 |
11 | 2792549850 |
12 | 12a60b3713 |
13 | 7ac1b2161 |
14 | 4496a90bd |
15 | 2767ede06 |
hex | 17d3e733f |
6396212031 has 32 divisors (see below), whose sum is σ = 9568204800. Its totient is φ = 3767148000.
The previous prime is 6396212029. The next prime is 6396212033. The reversal of 6396212031 is 1302126936.
It is an interprime number because it is at equal distance from previous prime (6396212029) and next prime (6396212033).
It is not a de Polignac number, because 6396212031 - 21 = 6396212029 is a prime.
It is a super-2 number, since 2×63962120312 = 81823056691018289922, which contains 22 as substring.
It is a Harshad number since it is a multiple of its sum of digits (33).
It is a junction number, because it is equal to n+sod(n) for n = 6396211983 and 6396212001.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (6396212033) 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 31 ways as a sum of consecutive naturals, for example, 271056 + ... + 293706.
It is an arithmetic number, because the mean of its divisors is an integer number (299006400).
Almost surely, 26396212031 is an apocalyptic number.
6396212031 is a deficient number, since it is larger than the sum of its proper divisors (3171992769).
6396212031 is a wasteful number, since it uses less digits than its factorization.
6396212031 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 22907.
The product of its (nonzero) digits is 11664, while the sum is 33.
The square root of 6396212031 is about 79976.3216896101. The cubic root of 6396212031 is about 1856.2691654337.
Adding to 6396212031 its reverse (1302126936), we get a palindrome (7698338967).
The spelling of 6396212031 in words is "six billion, three hundred ninety-six million, two hundred twelve thousand, thirty-one".
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