Search a number
-
+
12310220242 = 273409206153
BaseRepresentation
bin10110111011011111…
…10000110111010010
31011202220211222112001
423131233300313102
5200202404021432
65353310424214
7614026100635
oct133557606722
934686758461
1012310220242
115247886741
12247680206a
1312125004b8
1484acd1c1c
154c0aec9e7
hex2ddbf0dd2

12310220242 has 16 divisors (see below), whose sum is σ = 18764137080. Its totient is φ = 6055921152.

The previous prime is 12310220227. The next prime is 12310220261. The reversal of 12310220242 is 24202201321.

It can be written as a sum of positive squares in 4 ways, for example, as 11903028201 + 407192041 = 109101^2 + 20179^2 .

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, 43363 + ... + 162790.

Almost surely, 212310220242 is an apocalyptic number.

12310220242 is a deficient number, since it is larger than the sum of its proper divisors (6453916838).

12310220242 is a wasteful number, since it uses less digits than its factorization.

12310220242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 206637.

The product of its (nonzero) digits is 384, while the sum is 19.

Adding to 12310220242 its reverse (24202201321), we get a palindrome (36512421563).

The spelling of 12310220242 in words is "twelve billion, three hundred ten million, two hundred twenty thousand, two hundred forty-two".

Divisors: 1 2 73 146 409 818 29857 59714 206153 412306 15049169 30098338 84316577 168633154 6155110121 12310220242