Base | Representation |
---|---|
bin | 100111010111… |
… | …110101001111 |
3 | 201102101001211 |
4 | 213113311033 |
5 | 10120234411 |
6 | 1005115251 |
7 | 153505024 |
oct | 47276517 |
9 | 21371054 |
10 | 10321231 |
11 | 590a548 |
12 | 3558b27 |
13 | 21a4b4b |
14 | 152954b |
15 | d8d221 |
hex | 9d7d4f |
10321231 has 4 divisors (see below), whose sum is σ = 10328032. Its totient is φ = 10314432.
The previous prime is 10321229. The next prime is 10321249. The reversal of 10321231 is 13212301.
It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 13212301 = 503 ⋅26267.
It is a cyclic number.
It is not a de Polignac number, because 10321231 - 21 = 10321229 is a prime.
It is a super-2 number, since 2×103212312 = 213055618710722, which 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 (10321211) by changing a digit.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 31 + ... + 4543.
It is an arithmetic number, because the mean of its divisors is an integer number (2582008).
Almost surely, 210321231 is an apocalyptic number.
10321231 is a deficient number, since it is larger than the sum of its proper divisors (6801).
10321231 is an equidigital number, since it uses as much as digits as its factorization.
10321231 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 6800.
The product of its (nonzero) digits is 36, while the sum is 13.
The square root of 10321231 is about 3212.6672719097. The cubic root of 10321231 is about 217.7261030059.
Adding to 10321231 its reverse (13212301), we get a palindrome (23533532).
The spelling of 10321231 in words is "ten million, three hundred twenty-one thousand, two hundred thirty-one".
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