Base | Representation |
---|---|
bin | 101010010110… |
… | …0011101110111 |
3 | 1112202222201212 |
4 | 1110230131313 |
5 | 21140432411 |
6 | 2111512035 |
7 | 356500352 |
oct | 124543567 |
9 | 45688655 |
10 | 22202231 |
11 | 11594957 |
12 | 752861b |
13 | 47a491c |
14 | 2d3d299 |
15 | 1e3868b |
hex | 152c777 |
22202231 has 16 divisors (see below), whose sum is σ = 23808000. Its totient is φ = 20671200.
The previous prime is 22202209. The next prime is 22202249. The reversal of 22202231 is 13220222.
It is a cyclic number.
It is not a de Polignac number, because 22202231 - 214 = 22185847 is a prime.
It is a super-2 number, since 2×222022312 = 985878122754722, which contains 22 as substring.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (22202261) by changing a digit.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 111470 + ... + 111668.
It is an arithmetic number, because the mean of its divisors is an integer number (1488000).
Almost surely, 222202231 is an apocalyptic number.
22202231 is a deficient number, since it is larger than the sum of its proper divisors (1605769).
22202231 is a wasteful number, since it uses less digits than its factorization.
22202231 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 350.
The product of its (nonzero) digits is 96, while the sum is 14.
The square root of 22202231 is about 4711.9243414979. The cubic root of 22202231 is about 281.0598902246.
Adding to 22202231 its reverse (13220222), we get a palindrome (35422453).
Subtracting from 22202231 its reverse (13220222), we obtain a square (8982009 = 29972).
The spelling of 22202231 in words is "twenty-two million, two hundred two thousand, two hundred thirty-one".
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