Search a number
-
+
131085317130 = 2354426398717
BaseRepresentation
bin111101000010101001…
…0110011010000001010
3110112100120011001211120
41322011102303100022
54121430320122010
6140115245140110
712320262545145
oct1720522632012
9415316131746
10131085317130
1150658275a39
12214a425a636
13c4909b4311
1464b76a505c
153623298e70
hex1e854b340a

131085317130 has 32 divisors (see below), whose sum is σ = 314615055744. Its totient is φ = 34954940736.

The previous prime is 131085317113. The next prime is 131085317131. The reversal of 131085317130 is 31713580131.

It is a junction number, because it is equal to n+sod(n) for n = 131085317091 and 131085317100.

It is not an unprimeable number, because it can be changed into a prime (131085317131) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1278532 + ... + 1377248.

It is an arithmetic number, because the mean of its divisors is an integer number (9831720492).

Almost surely, 2131085317130 is an apocalyptic number.

131085317130 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

131085317130 is an abundant number, since it is smaller than the sum of its proper divisors (183529738614).

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

131085317130 is a wasteful number, since it uses less digits than its factorization.

131085317130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 142990.

The product of its (nonzero) digits is 7560, while the sum is 33.

Adding to 131085317130 its reverse (31713580131), we get a palindrome (162798897261).

The spelling of 131085317130 in words is "one hundred thirty-one billion, eighty-five million, three hundred seventeen thousand, one hundred thirty".

Divisors: 1 2 3 5 6 10 15 30 44263 88526 98717 132789 197434 221315 265578 296151 442630 493585 592302 663945 987170 1327890 1480755 2961510 4369510571 8739021142 13108531713 21847552855 26217063426 43695105710 65542658565 131085317130