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22430045 = 511478677
BaseRepresentation
bin101010110010…
…0000101011101
31120012120020102
41111210011131
521220230140
62120430445
7361436501
oct125440535
946176212
1022430045
1111730030
127618425
134854521
142d9c301
151e80e15
hex156415d

22430045 has 16 divisors (see below), whose sum is σ = 29991168. Its totient is φ = 15963840.

The previous prime is 22430041. The next prime is 22430069. The reversal of 22430045 is 54003422.

It is not a de Polignac number, because 22430045 - 22 = 22430041 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 22429999 and 22430026.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22430041) 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, 1754 + ... + 6923.

It is an arithmetic number, because the mean of its divisors is an integer number (1874448).

Almost surely, 222430045 is an apocalyptic number.

It is an amenable number.

22430045 is a deficient number, since it is larger than the sum of its proper divisors (7561123).

22430045 is a wasteful number, since it uses less digits than its factorization.

22430045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8740.

The product of its (nonzero) digits is 960, while the sum is 20.

The square root of 22430045 is about 4736.0368452959. The cubic root of 22430045 is about 282.0179263624.

Adding to 22430045 its reverse (54003422), we get a palindrome (76433467).

The spelling of 22430045 in words is "twenty-two million, four hundred thirty thousand, forty-five".

Divisors: 1 5 11 47 55 235 517 2585 8677 43385 95447 407819 477235 2039095 4486009 22430045