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22730433 = 311798719
BaseRepresentation
bin101011010110…
…1011011000001
31120202211021220
41112231123001
521304333213
62131105253
7364130325
oct126553301
946684256
1022730433
1111915790
127742229
13492b17b
143039985
151edee23
hex15ad6c1

22730433 has 16 divisors (see below), whose sum is σ = 33484800. Its totient is φ = 13600080.

The previous prime is 22730431. The next prime is 22730467. The reversal of 22730433 is 33403722.

It is a happy number.

It is not a de Polignac number, because 22730433 - 21 = 22730431 is a prime.

It is not an unprimeable number, because it can be changed into a prime (22730431) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1753 + ... + 6966.

It is an arithmetic number, because the mean of its divisors is an integer number (2092800).

Almost surely, 222730433 is an apocalyptic number.

It is an amenable number.

22730433 is a deficient number, since it is larger than the sum of its proper divisors (10754367).

22730433 is a wasteful number, since it uses less digits than its factorization.

22730433 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8812.

The product of its (nonzero) digits is 3024, while the sum is 24.

The square root of 22730433 is about 4767.6443869064. The cubic root of 22730433 is about 283.2712960678.

Subtracting 22730433 from its reverse (33403722), we obtain a square (10673289 = 32672).

The spelling of 22730433 in words is "twenty-two million, seven hundred thirty thousand, four hundred thirty-three".

Divisors: 1 3 11 33 79 237 869 2607 8719 26157 95909 287727 688801 2066403 7576811 22730433