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12213794 = 26106897
BaseRepresentation
bin101110100101…
…111000100010
3211222112011202
4232211320202
511111320134
61113441202
7205546505
oct56457042
924875152
1012213794
11699244a
124110202
1326b83c8
14189d13c
151113d7e
hexba5e22

12213794 has 4 divisors (see below), whose sum is σ = 18320694. Its totient is φ = 6106896.

The previous prime is 12213793. The next prime is 12213809. The reversal of 12213794 is 49731221.

12213794 is digitally balanced in base 2, 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.

It can be written as a sum of positive squares in only one way, i.e., 8265625 + 3948169 = 2875^2 + 1987^2 .

It is not an unprimeable number, because it can be changed into a prime (12213793) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3053447 + ... + 3053450.

Almost surely, 212213794 is an apocalyptic number.

12213794 is a deficient number, since it is larger than the sum of its proper divisors (6106900).

12213794 is an equidigital number, since it uses as much as digits as its factorization.

12213794 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6106899.

The product of its digits is 3024, while the sum is 29.

The square root of 12213794 is about 3494.8238868361. The cubic root of 12213794 is about 230.2944810227.

The spelling of 12213794 in words is "twelve million, two hundred thirteen thousand, seven hundred ninety-four".

Divisors: 1 2 6106897 12213794