Search a number
-
+
12652041031 = 7371519527
BaseRepresentation
bin10111100100001111…
…01101001101000111
31012122202001021111021
423302013231031013
5201402410303111
65451241052011
7625346401000
oct136207551507
935582037437
1012652041031
115402824763
122551187007
131268281816
148804701a7
154e0b1cd71
hex2f21ed347

12652041031 has 16 divisors (see below), whose sum is σ = 14962406400. Its totient is φ = 10691845080.

The previous prime is 12652041029. The next prime is 12652041079. The reversal of 12652041031 is 13014025621.

It is a happy number.

It is not a de Polignac number, because 12652041031 - 21 = 12652041029 is a prime.

It is a super-2 number, since 2×126520410312 (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12652040987 and 12652041005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12655041031) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 235411 + ... + 284116.

It is an arithmetic number, because the mean of its divisors is an integer number (935150400).

Almost surely, 212652041031 is an apocalyptic number.

12652041031 is a deficient number, since it is larger than the sum of its proper divisors (2310365369).

12652041031 is an frugal number, since it uses more digits than its factorization.

12652041031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 519619 (or 519605 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 25.

Adding to 12652041031 its reverse (13014025621), we get a palindrome (25666066652).

The spelling of 12652041031 in words is "twelve billion, six hundred fifty-two million, forty-one thousand, thirty-one".

Divisors: 1 7 49 71 343 497 3479 24353 519527 3636689 25456823 36886417 178197761 258204919 1807434433 12652041031