Search a number
-
+
12444201213 = 3101349117679
BaseRepresentation
bin10111001011011101…
…10111000011111101
31012010020221220212020
423211232313003331
5200441203414323
65414454230353
7620243652003
oct134556670375
935106856766
1012444201213
115306477614
1224b36553b9
1312341b0c92
14860a0aa73
154cc765ae3
hex2e5bb70fd

12444201213 has 16 divisors (see below), whose sum is σ = 16804704000. Its totient is φ = 8190388800.

The previous prime is 12444201179. The next prime is 12444201277. The reversal of 12444201213 is 31210244421.

It is a de Polignac number, because none of the positive numbers 2k-12444201213 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12444201113) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 46908 + ... + 164586.

It is an arithmetic number, because the mean of its divisors is an integer number (1050294000).

Almost surely, 212444201213 is an apocalyptic number.

It is an amenable number.

12444201213 is a deficient number, since it is larger than the sum of its proper divisors (4360502787).

12444201213 is a wasteful number, since it uses less digits than its factorization.

12444201213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 118132.

The product of its (nonzero) digits is 1536, while the sum is 24.

Adding to 12444201213 its reverse (31210244421), we get a palindrome (43654445634).

The spelling of 12444201213 in words is "twelve billion, four hundred forty-four million, two hundred one thousand, two hundred thirteen".

Divisors: 1 3 101 303 349 1047 35249 105747 117679 353037 11885579 35656737 41069971 123209913 4148067071 12444201213