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12423163 = 50924407
BaseRepresentation
bin101111011000…
…111111111011
3212101011101011
4233120333323
511140020123
61122134351
7210411064
oct57307773
925334334
1012423163
117015785
1241b13b7
13275c7ac
14191556b
151155e0d
hexbd8ffb

12423163 has 4 divisors (see below), whose sum is σ = 12448080. Its totient is φ = 12398248.

The previous prime is 12423161. The next prime is 12423167. The reversal of 12423163 is 36132421.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 36132421 = 132779417.

It is a cyclic number.

It is not a de Polignac number, because 12423163 - 21 = 12423161 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12423161) 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, 11695 + ... + 12712.

It is an arithmetic number, because the mean of its divisors is an integer number (3112020).

Almost surely, 212423163 is an apocalyptic number.

12423163 is a deficient number, since it is larger than the sum of its proper divisors (24917).

12423163 is an equidigital number, since it uses as much as digits as its factorization.

12423163 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24916.

The product of its digits is 864, while the sum is 22.

The square root of 12423163 is about 3524.6507628416. The cubic root of 12423163 is about 231.6029363081.

Adding to 12423163 its reverse (36132421), we get a palindrome (48555584).

The spelling of 12423163 in words is "twelve million, four hundred twenty-three thousand, one hundred sixty-three".

Divisors: 1 509 24407 12423163