Search a number
-
+
12432215047 = 72377218727
BaseRepresentation
bin10111001010000010…
…01000110000000111
31012002102101221221011
423211001020300013
5200430121340142
65413345303051
7620040040630
oct134501106007
935072357834
1012432215047
1152aa73019a
1224ab634a87
131231875385
1485d1aa887
154cb699417
hex2e5048c07

12432215047 has 8 divisors (see below), whose sum is σ = 14825995776. Its totient is φ = 10192871832.

The previous prime is 12432215041. The next prime is 12432215077. The reversal of 12432215047 is 74051223421.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 12432215047 - 223 = 12423826439 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12432215041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 38609203 + ... + 38609524.

It is an arithmetic number, because the mean of its divisors is an integer number (1853249472).

Almost surely, 212432215047 is an apocalyptic number.

12432215047 is a deficient number, since it is larger than the sum of its proper divisors (2393780729).

12432215047 is an equidigital number, since it uses as much as digits as its factorization.

12432215047 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77218757.

The product of its (nonzero) digits is 13440, while the sum is 31.

Adding to 12432215047 its reverse (74051223421), we get a palindrome (86483438468).

The spelling of 12432215047 in words is "twelve billion, four hundred thirty-two million, two hundred fifteen thousand, forty-seven".

Divisors: 1 7 23 161 77218727 540531089 1776030721 12432215047