Base | Representation |
---|---|
bin | 100111010101… |
… | …101001000101 |
3 | 201101220202121 |
4 | 213111221011 |
5 | 10114443021 |
6 | 1005005541 |
7 | 153436621 |
oct | 47255105 |
9 | 21356677 |
10 | 10312261 |
11 | 5903833 |
12 | 35538b1 |
13 | 21a0a3b |
14 | 1526181 |
15 | d8a741 |
hex | 9d5a45 |
10312261 has 4 divisors (see below), whose sum is σ = 10328524. Its totient is φ = 10296000.
The previous prime is 10312259. The next prime is 10312277. The reversal of 10312261 is 16221301.
10312261 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.
It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 16221301 = 1087 ⋅14923.
It can be written as a sum of positive squares in 2 ways, for example, as 9060100 + 1252161 = 3010^2 + 1119^2 .
It is a cyclic number.
It is not a de Polignac number, because 10312261 - 21 = 10312259 is a prime.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (10312241) 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, 7140 + ... + 8461.
It is an arithmetic number, because the mean of its divisors is an integer number (2582131).
Almost surely, 210312261 is an apocalyptic number.
It is an amenable number.
10312261 is a deficient number, since it is larger than the sum of its proper divisors (16263).
10312261 is an equidigital number, since it uses as much as digits as its factorization.
10312261 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 16262.
The product of its (nonzero) digits is 72, while the sum is 16.
The square root of 10312261 is about 3211.2709322011. The cubic root of 10312261 is about 217.6630107516.
Adding to 10312261 its reverse (16221301), we get a palindrome (26533562).
The spelling of 10312261 in words is "ten million, three hundred twelve thousand, two hundred sixty-one".
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