Search a number
-
+
22221230 = 252222123
BaseRepresentation
bin101010011000…
…1000110101110
31112210221210112
41110301012232
521142034410
62112140022
7356606633
oct124610656
945727715
1022221230
11115a8159
127537612
1347b0475
142d4618a
151e3e105
hex15311ae

22221230 has 8 divisors (see below), whose sum is σ = 39998232. Its totient is φ = 8888488.

The previous prime is 22221211. The next prime is 22221233. The reversal of 22221230 is 3212222.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22221233) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1111052 + ... + 1111071.

It is an arithmetic number, because the mean of its divisors is an integer number (4999779).

Almost surely, 222221230 is an apocalyptic number.

22221230 is a deficient number, since it is larger than the sum of its proper divisors (17777002).

22221230 is a wasteful number, since it uses less digits than its factorization.

22221230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2222130.

The product of its (nonzero) digits is 96, while the sum is 14.

The square root of 22221230 is about 4713.9399656763. The cubic root of 22221230 is about 281.1400373418.

Adding to 22221230 its reverse (3212222), we get a palindrome (25433452).

The spelling of 22221230 in words is "twenty-two million, two hundred twenty-one thousand, two hundred thirty".

Divisors: 1 2 5 10 2222123 4444246 11110615 22221230