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22312130 = 255474079
BaseRepresentation
bin101010100011…
…1010011000010
31112222120111012
41111013103002
521202442010
62114120522
7360435641
oct125072302
945876435
1022312130
111165a485
127580142
134812959
142d6b358
151e5b005
hex15474c2

22312130 has 16 divisors (see below), whose sum is σ = 40245120. Its totient is φ = 8906352.

The previous prime is 22312127. The next prime is 22312163. The reversal of 22312130 is 3121322.

It is a happy number.

It is a super-3 number, since 3×223121303 (a number of 23 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

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, 3431 + ... + 7509.

It is an arithmetic number, because the mean of its divisors is an integer number (2515320).

Almost surely, 222312130 is an apocalyptic number.

22312130 is a deficient number, since it is larger than the sum of its proper divisors (17932990).

22312130 is a wasteful number, since it uses less digits than its factorization.

22312130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4633.

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

The square root of 22312130 is about 4723.5717418073. The cubic root of 22312130 is about 281.5228673609.

Adding to 22312130 its reverse (3121322), we get a palindrome (25433452).

It can be divided in two parts, 2 and 2312130, that added together give a palindrome (2312132).

The spelling of 22312130 in words is "twenty-two million, three hundred twelve thousand, one hundred thirty".

Divisors: 1 2 5 10 547 1094 2735 4079 5470 8158 20395 40790 2231213 4462426 11156065 22312130