Search a number
-
+
131231400141342 = 2321871900023557
BaseRepresentation
bin11101110101101010110000…
…111111010010001000011110
3122012122121011220121211222010
4131311222300333102020132
5114200043401414010332
61143034512320332050
736433104301205214
oct3565526077221036
9565577156554863
10131231400141342
11388a5a19203256
1212875636474026
13582c0b6332b87
1424598c2a7ccb4
15102896ac7e9cc
hex775ab0fd221e

131231400141342 has 8 divisors (see below), whose sum is σ = 262462800282696. Its totient is φ = 43743800047112.

The previous prime is 131231400141299. The next prime is 131231400141343. The reversal of 131231400141342 is 243141004132131.

It is a sphenic number, since it is the product of 3 distinct primes.

131231400141342 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131231400141343) 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, 10935950011773 + ... + 10935950011784.

It is an arithmetic number, because the mean of its divisors is an integer number (32807850035337).

Almost surely, 2131231400141342 is an apocalyptic number.

131231400141342 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

131231400141342 is a wasteful number, since it uses less digits than its factorization.

131231400141342 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21871900023562.

The product of its (nonzero) digits is 6912, while the sum is 30.

Adding to 131231400141342 its reverse (243141004132131), we get a palindrome (374372404273473).

The spelling of 131231400141342 in words is "one hundred thirty-one trillion, two hundred thirty-one billion, four hundred million, one hundred forty-one thousand, three hundred forty-two".

Divisors: 1 2 3 6 21871900023557 43743800047114 65615700070671 131231400141342