Search a number
-
+
12423101 = 101123001
BaseRepresentation
bin101111011000…
…111110111101
3212101011021212
4233120332331
511140014401
61122134205
7210410645
oct57307675
925334255
1012423101
117015729
1241b1365
13275c762
141915525
151155dbb
hexbd8fbd

12423101 has 4 divisors (see below), whose sum is σ = 12546204. Its totient is φ = 12300000.

The previous prime is 12423097. The next prime is 12423109. The reversal of 12423101 is 10132421.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 8008900 + 4414201 = 2830^2 + 2101^2 .

It is a cyclic number.

It is not a de Polignac number, because 12423101 - 22 = 12423097 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12423109) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 61400 + ... + 61601.

It is an arithmetic number, because the mean of its divisors is an integer number (3136551).

Almost surely, 212423101 is an apocalyptic number.

It is an amenable number.

12423101 is a deficient number, since it is larger than the sum of its proper divisors (123103).

12423101 is a wasteful number, since it uses less digits than its factorization.

12423101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 123102.

The product of its (nonzero) digits is 48, while the sum is 14.

The square root of 12423101 is about 3524.6419676330. The cubic root of 12423101 is about 231.6025510222.

Adding to 12423101 its reverse (10132421), we get a palindrome (22555522).

The spelling of 12423101 in words is "twelve million, four hundred twenty-three thousand, one hundred one".

Divisors: 1 101 123001 12423101