Base | Representation |
---|---|
bin | 10111111000010… |
… | …10100110010111 |
3 | 111221221101100021 |
4 | 23330022212113 |
5 | 402240241211 |
6 | 31513330011 |
7 | 4651463332 |
oct | 1374124627 |
9 | 457841307 |
10 | 200321431 |
11 | a3092502 |
12 | 57106907 |
13 | 3266a6bb |
14 | 1c867619 |
15 | 128be771 |
hex | bf0a997 |
200321431 has 2 divisors, whose sum is σ = 200321432. Its totient is φ = 200321430.
The previous prime is 200321423. The next prime is 200321447. The reversal of 200321431 is 134123002.
It is a happy number.
It is an a-pointer prime, because the next prime (200321447) can be obtained adding 200321431 to its sum of digits (16).
It is a weak prime.
It is a cyclic number.
It is not a de Polignac number, because 200321431 - 23 = 200321423 is a prime.
It is a super-2 number, since 2×2003214312 = 80257351435775522, which contains 22 as substring.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (200321131) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100160715 + 100160716.
It is an arithmetic number, because the mean of its divisors is an integer number (100160716).
Almost surely, 2200321431 is an apocalyptic number.
200321431 is a deficient number, since it is larger than the sum of its proper divisors (1).
200321431 is an equidigital number, since it uses as much as digits as its factorization.
200321431 is an evil number, because the sum of its binary digits is even.
The product of its (nonzero) digits is 144, while the sum is 16.
The square root of 200321431 is about 14153.4953633369. The cubic root of 200321431 is about 585.1166699390.
Adding to 200321431 its reverse (134123002), we get a palindrome (334444433).
The spelling of 200321431 in words is "two hundred million, three hundred twenty-one thousand, four hundred thirty-one".
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