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22213130 = 252976597
BaseRepresentation
bin101010010111…
…1001000001010
31112210112200112
41110233020022
521141310010
62112034322
7356544212
oct124571012
945715615
1022213130
11115a2065
1275329a2
1347a9884
142d43242
151e3ba05
hex152f20a

22213130 has 16 divisors (see below), whose sum is σ = 41362920. Its totient is φ = 8578752.

The previous prime is 22213127. The next prime is 22213133. The reversal of 22213130 is 3131222.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (22213127) and next prime (22213133).

It can be written as a sum of positive squares in 4 ways, for example, as 21335161 + 877969 = 4619^2 + 937^2 .

It is a super-3 number, since 3×222131303 (a number of 23 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (22213133) by changing a digit.

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, 38009 + ... + 38588.

Almost surely, 222213130 is an apocalyptic number.

22213130 is a deficient number, since it is larger than the sum of its proper divisors (19149790).

22213130 is a wasteful number, since it uses less digits than its factorization.

22213130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76633.

The product of its (nonzero) digits is 72, while the sum is 14.

The square root of 22213130 is about 4713.0807334481. The cubic root of 22213130 is about 281.1058731505.

Adding to 22213130 its reverse (3131222), we get a palindrome (25344352).

The spelling of 22213130 in words is "twenty-two million, two hundred thirteen thousand, one hundred thirty".

Divisors: 1 2 5 10 29 58 145 290 76597 153194 382985 765970 2221313 4442626 11106565 22213130