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10312223 = 47219409
BaseRepresentation
bin100111010101…
…101000011111
3201101220201012
4213111220133
510114442343
61005005435
7153436535
oct47255037
921356635
1010312223
1159037a9
12355387b
1321a0a0c
141526155
15d8a718
hex9d5a1f

10312223 has 4 divisors (see below), whose sum is σ = 10531680. Its totient is φ = 10092768.

The previous prime is 10312213. The next prime is 10312229. The reversal of 10312223 is 32221301.

It is a happy number.

10312223 is digitally balanced in base 3, 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: 32221301 = 74603043.

It is a cyclic number.

It is not a de Polignac number, because 10312223 - 24 = 10312207 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 10312198 and 10312207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10312229) 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, 109658 + ... + 109751.

It is an arithmetic number, because the mean of its divisors is an integer number (2632920).

Almost surely, 210312223 is an apocalyptic number.

10312223 is a deficient number, since it is larger than the sum of its proper divisors (219457).

10312223 is an equidigital number, since it uses as much as digits as its factorization.

10312223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 219456.

The product of its (nonzero) digits is 72, while the sum is 14.

The square root of 10312223 is about 3211.2650155352. The cubic root of 10312223 is about 217.6627433934.

Adding to 10312223 its reverse (32221301), we get a palindrome (42533524).

The spelling of 10312223 in words is "ten million, three hundred twelve thousand, two hundred twenty-three".

Divisors: 1 47 219409 10312223