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1220230112 = 25179213029
BaseRepresentation
bin100100010111011…
…0011101111100000
310011001002010000212
41020232303233200
54444334330422
6321025433252
742144533123
oct11056635740
93131063025
101220230112
11576873a42
122a079b828
13165a5856a
14b80b83ba
15721d49e2
hex48bb3be0

1220230112 has 24 divisors (see below), whose sum is σ = 2415760200. Its totient is φ = 606703744.

The previous prime is 1220230111. The next prime is 1220230117. The reversal of 1220230112 is 2110320221.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1220230111) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 100787 + ... + 112242.

It is an arithmetic number, because the mean of its divisors is an integer number (100656675).

Almost surely, 21220230112 is an apocalyptic number.

It is an amenable number.

1220230112 is a deficient number, since it is larger than the sum of its proper divisors (1195530088).

1220230112 is a wasteful number, since it uses less digits than its factorization.

1220230112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 213218 (or 213210 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 14.

The square root of 1220230112 is about 34931.7922815306. The cubic root of 1220230112 is about 1068.5969066669.

Adding to 1220230112 its reverse (2110320221), we get a palindrome (3330550333).

The spelling of 1220230112 in words is "one billion, two hundred twenty million, two hundred thirty thousand, one hundred twelve".

Divisors: 1 2 4 8 16 32 179 358 716 1432 2864 5728 213029 426058 852116 1704232 3408464 6816928 38132191 76264382 152528764 305057528 610115056 1220230112