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22330427 = 723531291
BaseRepresentation
bin101010100101…
…1110000111011
31120000111120212
41111023300323
521204033202
62114341335
7360543200
oct125136073
946014525
1022330427
11116721a9
12758a84b
13481b092
142d73ca7
151e61652
hex154bc3b

22330427 has 12 divisors (see below), whose sum is σ = 26069976. Its totient is φ = 19071360.

The previous prime is 22330417. The next prime is 22330457. The reversal of 22330427 is 72403322.

It is not a de Polignac number, because 22330427 - 214 = 22314043 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22330417) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 16652 + ... + 17942.

It is an arithmetic number, because the mean of its divisors is an integer number (2172498).

Almost surely, 222330427 is an apocalyptic number.

22330427 is a deficient number, since it is larger than the sum of its proper divisors (3739549).

22330427 is a wasteful number, since it uses less digits than its factorization.

22330427 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1658 (or 1651 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 23.

The square root of 22330427 is about 4725.5081208268. The cubic root of 22330427 is about 281.5998003493.

Adding to 22330427 its reverse (72403322), we get a palindrome (94733749).

The spelling of 22330427 in words is "twenty-two million, three hundred thirty thousand, four hundred twenty-seven".

Divisors: 1 7 49 353 1291 2471 9037 17297 63259 455723 3190061 22330427