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122222330 = 2582714779
BaseRepresentation
bin1110100100011…
…11011011111010
322111222112111222
413102033123322
5222242103310
620043352042
73012605216
oct722173372
9274875458
10122222330
1162a9a49a
1234b22622
131c424609
1412337946
15aae4055
hex748f6fa

122222330 has 16 divisors (see below), whose sum is σ = 220281120. Its totient is φ = 48826512.

The previous prime is 122222291. The next prime is 122222339. The reversal of 122222330 is 33222221.

It is a junction number, because it is equal to n+sod(n) for n = 122222299 and 122222308.

It is not an unprimeable number, because it can be changed into a prime (122222339) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 881 + ... + 15659.

It is an arithmetic number, because the mean of its divisors is an integer number (13767570).

Almost surely, 2122222330 is an apocalyptic number.

122222330 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

122222330 is a deficient number, since it is larger than the sum of its proper divisors (98058790).

122222330 is a wasteful number, since it uses less digits than its factorization.

122222330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15613.

The product of its (nonzero) digits is 288, while the sum is 17.

The square root of 122222330 is about 11055.4208422837. The cubic root of 122222330 is about 496.2686635241.

Adding to 122222330 its reverse (33222221), we get a palindrome (155444551).

The spelling of 122222330 in words is "one hundred twenty-two million, two hundred twenty-two thousand, three hundred thirty".

Divisors: 1 2 5 10 827 1654 4135 8270 14779 29558 73895 147790 12222233 24444466 61111165 122222330