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1313213022222 = 2312231447123677
BaseRepresentation
bin10011000111000001100…
…110001000000000001110
311122112122001222112020120
4103013001212020000032
5133003430013202342
62443140504325410
7163606433341143
oct23070146100016
94575561875216
101313213022222
11466a26574372
12192614473866
1396ab266279a
14477ba3263ca
152425de04aec
hex131c198800e

1313213022222 has 32 divisors (see below), whose sum is σ = 2630411407872. Its totient is φ = 437073952224.

The previous prime is 1313213022217. The next prime is 1313213022241. The reversal of 1313213022222 is 2222203123131.

It is a junction number, because it is equal to n+sod(n) for n = 1313213022192 and 1313213022201.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10556248 + ... + 10679924.

It is an arithmetic number, because the mean of its divisors is an integer number (82200356496).

Almost surely, 21313213022222 is an apocalyptic number.

1313213022222 is an abundant number, since it is smaller than the sum of its proper divisors (1317198385650).

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

1313213022222 is a wasteful number, since it uses less digits than its factorization.

1313213022222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 126352.

The product of its (nonzero) digits is 1728, while the sum is 24.

Adding to 1313213022222 its reverse (2222203123131), we get a palindrome (3535416145353).

The spelling of 1313213022222 in words is "one trillion, three hundred thirteen billion, two hundred thirteen million, twenty-two thousand, two hundred twenty-two".

Divisors: 1 2 3 6 1223 1447 2446 2894 3669 4341 7338 8682 123677 247354 371031 742062 1769681 3539362 5309043 10618086 151256971 178960619 302513942 357921238 453770913 536881857 907541826 1073763714 218868837037 437737674074 656606511111 1313213022222