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12432331433 = 85391455947
BaseRepresentation
bin10111001010000011…
…00101001010101001
31012002102121212120202
423211001211022221
5200430134101213
65413352001545
7620041034144
oct134501451251
935072555522
1012432331433
1152aa7aa685
1224ab6902b5
1312318b6342
1485d1db05b
154cb6bdb58
hex2e50652a9

12432331433 has 4 divisors (see below), whose sum is σ = 12433795920. Its totient is φ = 12430866948.

The previous prime is 12432331411. The next prime is 12432331447. The reversal of 12432331433 is 33413323421.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 33413323421 = 171965489613.

It is a cyclic number.

It is not a de Polignac number, because 12432331433 - 216 = 12432265897 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12432331396 and 12432331405.

It is not an unprimeable number, because it can be changed into a prime (12432331403) 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, 719435 + ... + 736512.

It is an arithmetic number, because the mean of its divisors is an integer number (3108448980).

Almost surely, 212432331433 is an apocalyptic number.

It is an amenable number.

12432331433 is a deficient number, since it is larger than the sum of its proper divisors (1464487).

12432331433 is an equidigital number, since it uses as much as digits as its factorization.

12432331433 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1464486.

The product of its digits is 15552, while the sum is 29.

Adding to 12432331433 its reverse (33413323421), we get a palindrome (45845654854).

The spelling of 12432331433 in words is "twelve billion, four hundred thirty-two million, three hundred thirty-one thousand, four hundred thirty-three".

Divisors: 1 8539 1455947 12432331433