Search a number
-
+
12444325432 = 2371120201827
BaseRepresentation
bin10111001011011110…
…10101011000111000
31012010021012020020221
423211233111120320
5200441221403212
65414501025424
7620245010110
oct134557253070
935107166227
1012444325432
115306551980
1224b36b5274
131234225696
14860a40040
154cc78c807
hex2e5bd5638

12444325432 has 32 divisors (see below), whose sum is σ = 29090632320. Its totient is φ = 4848438240.

The previous prime is 12444325427. The next prime is 12444325447. The reversal of 12444325432 is 23452344421.

It is a super-2 number, since 2×124443254322 (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10100298 + ... + 10101529.

It is an arithmetic number, because the mean of its divisors is an integer number (909082260).

Almost surely, 212444325432 is an apocalyptic number.

It is an amenable number.

12444325432 is an abundant number, since it is smaller than the sum of its proper divisors (16646306888).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12444325432 is a wasteful number, since it uses less digits than its factorization.

12444325432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20201851 (or 20201847 counting only the distinct ones).

The product of its digits is 92160, while the sum is 34.

Adding to 12444325432 its reverse (23452344421), we get a palindrome (35896669853).

The spelling of 12444325432 in words is "twelve billion, four hundred forty-four million, three hundred twenty-five thousand, four hundred thirty-two".

Divisors: 1 2 4 7 8 11 14 22 28 44 56 77 88 154 308 616 20201827 40403654 80807308 141412789 161614616 222220097 282825578 444440194 565651156 888880388 1131302312 1555540679 1777760776 3111081358 6222162716 12444325432