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30223130 = 257431759
BaseRepresentation
bin111001101001…
…0101100011010
32002212111100012
41303102230122
530214120010
62555441522
7514615040
oct163225432
962774305
1030223130
11160730a3
12a1562a2
136352712
14402a390
1529c0005
hex1cd2b1a

30223130 has 16 divisors (see below), whose sum is σ = 62173440. Its totient is φ = 10362192.

The previous prime is 30223111. The next prime is 30223147. The reversal of 30223130 is 3132203.

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

It is an unprimeable number.

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, 215810 + ... + 215949.

It is an arithmetic number, because the mean of its divisors is an integer number (3885840).

Almost surely, 230223130 is an apocalyptic number.

30223130 is an abundant number, since it is smaller than the sum of its proper divisors (31950310).

30223130 is a wasteful number, since it uses less digits than its factorization.

30223130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 431773.

The product of its (nonzero) digits is 108, while the sum is 14.

The square root of 30223130 is about 5497.5567300393. The cubic root of 30223130 is about 311.4917005622.

Adding to 30223130 its reverse (3132203), we get a palindrome (33355333).

It can be divided in two parts, 302 and 23130, that added together give a palindrome (23432).

The spelling of 30223130 in words is "thirty million, two hundred twenty-three thousand, one hundred thirty".

Divisors: 1 2 5 7 10 14 35 70 431759 863518 2158795 3022313 4317590 6044626 15111565 30223130