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12423111 = 315232719
BaseRepresentation
bin101111011000…
…111111000111
3212101011022020
4233120333013
511140014421
61122134223
7210410661
oct57307707
925334266
1012423111
117015738
1241b1373
13275c76c
141915531
151155dc6
hexbd8fc7

12423111 has 8 divisors (see below), whose sum is σ = 16581120. Its totient is φ = 8273592.

The previous prime is 12423109. The next prime is 12423113. The reversal of 12423111 is 11132421.

12423111 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (12423109) and next prime (12423113).

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

It is not a de Polignac number, because 12423111 - 21 = 12423109 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12423113) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3210 + ... + 5928.

It is an arithmetic number, because the mean of its divisors is an integer number (2072640).

Almost surely, 212423111 is an apocalyptic number.

12423111 is a deficient number, since it is larger than the sum of its proper divisors (4158009).

12423111 is a wasteful number, since it uses less digits than its factorization.

12423111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4245.

The product of its digits is 48, while the sum is 15.

The square root of 12423111 is about 3524.6433862165. The cubic root of 12423111 is about 231.6026131652.

Adding to 12423111 its reverse (11132421), we get a palindrome (23555532).

The spelling of 12423111 in words is "twelve million, four hundred twenty-three thousand, one hundred eleven".

Divisors: 1 3 1523 2719 4569 8157 4141037 12423111