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130317809281 = 1111847073571
BaseRepresentation
bin111100101011110001…
…0111111011010000001
3110110101001221121222221
41321113202333122001
54113342324344111
6135511150531041
712262253050012
oct1712742773201
9413331847887
10130317809281
11502a4007a30
122130b206a81
13c39a99986a
146443797009
1535cabde371
hex1e578bf681

130317809281 has 4 divisors (see below), whose sum is σ = 142164882864. Its totient is φ = 118470735700.

The previous prime is 130317809267. The next prime is 130317809291. The reversal of 130317809281 is 182908713031.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 130317809281 - 215 = 130317776513 is a prime.

It is a super-2 number, since 2×1303178092812 (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (130317809231) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5923536775 + ... + 5923536796.

It is an arithmetic number, because the mean of its divisors is an integer number (35541220716).

Almost surely, 2130317809281 is an apocalyptic number.

130317809281 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

130317809281 is a deficient number, since it is larger than the sum of its proper divisors (11847073583).

130317809281 is a wasteful number, since it uses less digits than its factorization.

130317809281 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11847073582.

The product of its (nonzero) digits is 72576, while the sum is 43.

The spelling of 130317809281 in words is "one hundred thirty billion, three hundred seventeen million, eight hundred nine thousand, two hundred eighty-one".

Divisors: 1 11 11847073571 130317809281