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1311282912130 = 251012801463513
BaseRepresentation
bin10011000101001110100…
…011010101101110000010
311122100122120010202221121
4103011032203111232002
5132441001411142010
62442221155342454
7163510545564052
oct23051643255602
94570576122847
101311282912130
11466126023064
12192175bb1a2a
1396865818ac9
1447675c61562
152419974a3da
hex1314e8d5b82

1311282912130 has 32 divisors (see below), whose sum is σ = 2384534794608. Its totient is φ = 519133440000.

The previous prime is 1311282912127. The next prime is 1311282912131. The reversal of 1311282912130 is 312192821131.

It can be written as a sum of positive squares in 8 ways, for example, as 1217048033601 + 94234878529 = 1103199^2 + 306977^2 .

It is a super-2 number, since 2×13112829121302 (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1311282912131) 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, 2597254 + ... + 3060766.

Almost surely, 21311282912130 is an apocalyptic number.

1311282912130 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1311282912130 is a deficient number, since it is larger than the sum of its proper divisors (1073251882478).

1311282912130 is a wasteful number, since it uses less digits than its factorization.

1311282912130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 466422.

The product of its (nonzero) digits is 5184, while the sum is 34.

Subtracting from 1311282912130 its reverse (312192821131), we obtain a palindrome (999090090999).

The spelling of 1311282912130 in words is "one trillion, three hundred eleven billion, two hundred eighty-two million, nine hundred twelve thousand, one hundred thirty".

Divisors: 1 2 5 10 101 202 505 1010 2801 5602 14005 28010 282901 463513 565802 927026 1414505 2317565 2829010 4635130 46814813 93629626 234074065 468148130 1298299913 2596599826 6491499565 12982999130 131128291213 262256582426 655641456065 1311282912130