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22222130 = 257317459
BaseRepresentation
bin101010011000…
…1010100110010
31112211000000212
41110301110302
521142102010
62112144122
7356612360
oct124612462
945730025
1022222130
11115a88a7
127538042
1347b09b8
142d46630
151e3e505
hex1531532

22222130 has 16 divisors (see below), whose sum is σ = 45714240. Its totient is φ = 7618992.

The previous prime is 22222129. The next prime is 22222199. The reversal of 22222130 is 3122222.

It is a Harshad number since it is a multiple of its sum of digits (14).

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 158660 + ... + 158799.

It is an arithmetic number, because the mean of its divisors is an integer number (2857140).

Almost surely, 222222130 is an apocalyptic number.

22222130 is an abundant number, since it is smaller than the sum of its proper divisors (23492110).

22222130 is a wasteful number, since it uses less digits than its factorization.

22222130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 317473.

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

The square root of 22222130 is about 4714.0354262564. The cubic root of 22222130 is about 281.1438328505.

Adding to 22222130 its reverse (3122222), we get a palindrome (25344352).

The spelling of 22222130 in words is "twenty-two million, two hundred twenty-two thousand, one hundred thirty".

Divisors: 1 2 5 7 10 14 35 70 317459 634918 1587295 2222213 3174590 4444426 11111065 22222130