Search a number
-
+
12312231010 = 252942455969
BaseRepresentation
bin10110111011101110…
…11011110001100010
31011210001122010202221
423131313123301202
5200203412343020
65353421501254
7614052144142
oct133567336142
934701563687
1012312231010
115248a2a432
12247741182a
131212a557c1
1484b296922
154c0d986aa
hex2ddddbc62

12312231010 has 16 divisors (see below), whose sum is σ = 22926223800. Its totient is φ = 4755068416.

The previous prime is 12312230951. The next prime is 12312231047. The reversal of 12312231010 is 1013221321.

It can be written as a sum of positive squares in 4 ways, for example, as 6279136081 + 6033094929 = 79241^2 + 77673^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21227695 + ... + 21228274.

Almost surely, 212312231010 is an apocalyptic number.

12312231010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12312231010 is a deficient number, since it is larger than the sum of its proper divisors (10613992790).

12312231010 is a wasteful number, since it uses less digits than its factorization.

12312231010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42456005.

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 12312231010 its reverse (1013221321), we get a palindrome (13325452331).

The spelling of 12312231010 in words is "twelve billion, three hundred twelve million, two hundred thirty-one thousand, ten".

Divisors: 1 2 5 10 29 58 145 290 42455969 84911938 212279845 424559690 1231223101 2462446202 6156115505 12312231010