Search a number
-
+
12443203213 = 78321416873
BaseRepresentation
bin10111001011010110…
…00011011010001101
31012010012002012212021
423211223003122031
5200440430000323
65414421010141
7620232324250
oct134553033215
935105065767
1012443203213
115305955821
1224b3253951
131233c2194c
1486082b097
154cc61a05d
hex2e5ac368d

12443203213 has 8 divisors (see below), whose sum is σ = 14392139328. Its totient is φ = 10537101024.

The previous prime is 12443203211. The next prime is 12443203249. The reversal of 12443203213 is 31230234421.

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 12443203213 - 21 = 12443203211 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12443203211) 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, 10707856 + ... + 10709017.

It is an arithmetic number, because the mean of its divisors is an integer number (1799017416).

Almost surely, 212443203213 is an apocalyptic number.

It is an amenable number.

12443203213 is a deficient number, since it is larger than the sum of its proper divisors (1948936115).

12443203213 is an equidigital number, since it uses as much as digits as its factorization.

12443203213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21416963.

The product of its (nonzero) digits is 3456, while the sum is 25.

Adding to 12443203213 its reverse (31230234421), we get a palindrome (43673437634).

The spelling of 12443203213 in words is "twelve billion, four hundred forty-three million, two hundred three thousand, two hundred thirteen".

Divisors: 1 7 83 581 21416873 149918111 1777600459 12443203213