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22132430 = 252213243
BaseRepresentation
bin101010001101…
…1011011001110
31112122102222122
41110123123032
521131214210
62110212542
7356060015
oct124333316
945572878
1022132430
1111547471
1274b4152
13477bc18
142d21a7c
151e22b55
hex151b6ce

22132430 has 8 divisors (see below), whose sum is σ = 39838392. Its totient is φ = 8852968.

The previous prime is 22132399. The next prime is 22132457. The reversal of 22132430 is 3423122.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 22132399 and 22132408.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1106612 + ... + 1106631.

It is an arithmetic number, because the mean of its divisors is an integer number (4979799).

Almost surely, 222132430 is an apocalyptic number.

22132430 is a deficient number, since it is larger than the sum of its proper divisors (17705962).

22132430 is a wasteful number, since it uses less digits than its factorization.

22132430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2213250.

The product of its (nonzero) digits is 288, while the sum is 17.

The square root of 22132430 is about 4704.5116643494. The cubic root of 22132430 is about 280.7650421304.

Adding to 22132430 its reverse (3423122), we get a palindrome (25555552).

The spelling of 22132430 in words is "twenty-two million, one hundred thirty-two thousand, four hundred thirty".

Divisors: 1 2 5 10 2213243 4426486 11066215 22132430