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23222130 = 235774071
BaseRepresentation
bin101100010010…
…1011101110010
31121200210202220
41120211131302
521421102010
62145421510
7401246001
oct130453562
947623686
1023222130
1112121148
12793a896
134a70c09
143126c38
15208a970
hex1625772

23222130 has 16 divisors (see below), whose sum is σ = 55733184. Its totient is φ = 6192560.

The previous prime is 23222099. The next prime is 23222137. The reversal of 23222130 is 3122232.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is not an unprimeable number, because it can be changed into a prime (23222137) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 387006 + ... + 387065.

It is an arithmetic number, because the mean of its divisors is an integer number (3483324).

Almost surely, 223222130 is an apocalyptic number.

23222130 is an abundant number, since it is smaller than the sum of its proper divisors (32511054).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

23222130 is a wasteful number, since it uses less digits than its factorization.

23222130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 774081.

The product of its (nonzero) digits is 144, while the sum is 15.

The square root of 23222130 is about 4818.9345295407. The cubic root of 23222130 is about 285.2992854799.

Adding to 23222130 its reverse (3122232), we get a palindrome (26344362).

The spelling of 23222130 in words is "twenty-three million, two hundred twenty-two thousand, one hundred thirty".

Divisors: 1 2 3 5 6 10 15 30 774071 1548142 2322213 3870355 4644426 7740710 11611065 23222130