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12213113 = 111915813
BaseRepresentation
bin101110100101…
…101101111001
3211222111020112
4232211231321
511111304423
61113434105
7205544513
oct56455571
924874215
1012213113
116991990
12410b935
1326b7cc3
14189cbb3
151113a78
hexba5b79

12213113 has 8 divisors (see below), whose sum is σ = 13395456. Its totient is φ = 11042800.

The previous prime is 12213109. The next prime is 12213127. The reversal of 12213113 is 31131221.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 12213113 - 22 = 12213109 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12213193) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 806 + ... + 5007.

It is an arithmetic number, because the mean of its divisors is an integer number (1674432).

Almost surely, 212213113 is an apocalyptic number.

It is an amenable number.

12213113 is a deficient number, since it is larger than the sum of its proper divisors (1182343).

12213113 is a wasteful number, since it uses less digits than its factorization.

12213113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6015.

The product of its digits is 36, while the sum is 14.

The square root of 12213113 is about 3494.7264556758. The cubic root of 12213113 is about 230.2902007950.

Adding to 12213113 its reverse (31131221), we get a palindrome (43344334).

It can be divided in two parts, 1221 and 3113, that added together give a palindrome (4334).

The spelling of 12213113 in words is "twelve million, two hundred thirteen thousand, one hundred thirteen".

Divisors: 1 11 191 2101 5813 63943 1110283 12213113