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12230303 = 19164033
BaseRepresentation
bin101110101001…
…111010011111
3212000100211012
4232221322133
511112332203
61114045435
7205645601
oct56517237
925010735
1012230303
1169a3898
12411987b
1326c2a87
1418a5171
151118bd8
hexba9e9f

12230303 has 4 divisors (see below), whose sum is σ = 12294528. Its totient is φ = 12166080.

The previous prime is 12230233. The next prime is 12230353. The reversal of 12230303 is 30303221.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 12230303 - 28 = 12230047 is a prime.

It is a super-2 number, since 2×122303032 = 299160622943618, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12230353) 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, 31826 + ... + 32207.

It is an arithmetic number, because the mean of its divisors is an integer number (3073632).

Almost surely, 212230303 is an apocalyptic number.

12230303 is a deficient number, since it is larger than the sum of its proper divisors (64225).

12230303 is an equidigital number, since it uses as much as digits as its factorization.

12230303 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64224.

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

The square root of 12230303 is about 3497.1850108337. The cubic root of 12230303 is about 230.3981949025.

Adding to 12230303 its reverse (30303221), we get a palindrome (42533524).

The spelling of 12230303 in words is "twelve million, two hundred thirty thousand, three hundred three".

Divisors: 1 191 64033 12230303