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12210043 = 19961357
BaseRepresentation
bin101110100100…
…111101111011
3211222100000211
4232210331323
511111210133
61113411551
7205532536
oct56447573
924870024
1012210043
11698a64a
124109bb7
1326b67a1
14189ba1d
151112bcd
hexba4f7b

12210043 has 4 divisors (see below), whose sum is σ = 12271600. Its totient is φ = 12148488.

The previous prime is 12210041. The next prime is 12210059. The reversal of 12210043 is 34001221.

12210043 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 34001221 = 214115881.

It is a cyclic number.

It is not a de Polignac number, because 12210043 - 21 = 12210041 is a prime.

It is a Duffinian number.

It is a plaindrome in base 15.

It is not an unprimeable number, because it can be changed into a prime (12210041) 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, 30480 + ... + 30877.

It is an arithmetic number, because the mean of its divisors is an integer number (3067900).

Almost surely, 212210043 is an apocalyptic number.

12210043 is a deficient number, since it is larger than the sum of its proper divisors (61557).

12210043 is an equidigital number, since it uses as much as digits as its factorization.

12210043 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61556.

The product of its (nonzero) digits is 48, while the sum is 13.

The square root of 12210043 is about 3494.2871948367. The cubic root of 12210043 is about 230.2709032263.

Adding to 12210043 its reverse (34001221), we get a palindrome (46211264).

The spelling of 12210043 in words is "twelve million, two hundred ten thousand, forty-three".

Divisors: 1 199 61357 12210043