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12303213 = 313315467
BaseRepresentation
bin101110111011…
…101101101101
3212011001211120
4232323231231
511122200323
61115411153
7206401266
oct56735555
925131746
1012303213
116a4364a
124153ab9
13271a010
1418c396d
1511305e3
hexbbbb6d

12303213 has 8 divisors (see below), whose sum is σ = 17666208. Its totient is φ = 7571184.

The previous prime is 12303209. The next prime is 12303217. The reversal of 12303213 is 31230321.

It is an interprime number because it is at equal distance from previous prime (12303209) and next prime (12303217).

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

It is not a de Polignac number, because 12303213 - 22 = 12303209 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12303192 and 12303201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12303217) 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, 157695 + ... + 157772.

It is an arithmetic number, because the mean of its divisors is an integer number (2208276).

Almost surely, 212303213 is an apocalyptic number.

12303213 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

12303213 is a deficient number, since it is larger than the sum of its proper divisors (5362995).

12303213 is a wasteful number, since it uses less digits than its factorization.

12303213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 315483.

The product of its (nonzero) digits is 108, while the sum is 15.

The square root of 12303213 is about 3507.5936195631. The cubic root of 12303213 is about 230.8551217629.

Adding to 12303213 its reverse (31230321), we get a palindrome (43533534).

It can be divided in two parts, 1230321 and 3, that multiplied together give a palindrome (3690963).

The spelling of 12303213 in words is "twelve million, three hundred three thousand, two hundred thirteen".

Divisors: 1 3 13 39 315467 946401 4101071 12303213