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12492443 = 19657497
BaseRepresentation
bin101111101001…
…111010011011
3212111200102002
4233221322123
511144224233
61123431215
7211120055
oct57517233
925450362
1012492443
117062837
12422550b
1327851a2
1419328d5
15116b6e8
hexbe9e9b

12492443 has 4 divisors (see below), whose sum is σ = 13149960. Its totient is φ = 11834928.

The previous prime is 12492419. The next prime is 12492451. The reversal of 12492443 is 34429421.

12492443 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.

It is a cyclic number.

It is not a de Polignac number, because 12492443 - 28 = 12492187 is a prime.

It is a super-3 number, since 3×124924433 (a number of 22 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12492043) 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, 328730 + ... + 328767.

It is an arithmetic number, because the mean of its divisors is an integer number (3287490).

Almost surely, 212492443 is an apocalyptic number.

12492443 is a deficient number, since it is larger than the sum of its proper divisors (657517).

12492443 is an equidigital number, since it uses as much as digits as its factorization.

12492443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 657516.

The product of its digits is 6912, while the sum is 29.

The square root of 12492443 is about 3534.4650231683. The cubic root of 12492443 is about 232.0326636036.

The spelling of 12492443 in words is "twelve million, four hundred ninety-two thousand, four hundred forty-three".

Divisors: 1 19 657497 12492443