Search a number
-
+
131031023413242 = 23151322144900917
BaseRepresentation
bin11101110010110000001001…
…100110101110011111111010
3122011221102222022110101200010
4131302300021212232133322
5114133303013443210432
61142402453211522350
736412451624133441
oct3562601146563772
9564842868411603
10131031023413242
1138828a43821717
12128428347593b6
135816231c5cb84
14244dd14933d58
15102363e6e23cc
hex772c099ae7fa

131031023413242 has 32 divisors (see below), whose sum is σ = 263879462219904. Its totient is φ = 43374284856000.

The previous prime is 131031023413097. The next prime is 131031023413247. The reversal of 131031023413242 is 242314320130131.

It is not an unprimeable number, because it can be changed into a prime (131031023413247) 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, 19532233 + ... + 25368684.

It is an arithmetic number, because the mean of its divisors is an integer number (8246233194372).

Almost surely, 2131031023413242 is an apocalyptic number.

131031023413242 is an abundant number, since it is smaller than the sum of its proper divisors (132848438806662).

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

131031023413242 is a wasteful number, since it uses less digits than its factorization.

131031023413242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44904294.

The product of its (nonzero) digits is 10368, while the sum is 30.

Adding to 131031023413242 its reverse (242314320130131), we get a palindrome (373345343543373).

The spelling of 131031023413242 in words is "one hundred thirty-one trillion, thirty-one billion, twenty-three million, four hundred thirteen thousand, two hundred forty-two".

Divisors: 1 2 3 6 151 302 453 906 3221 6442 9663 19326 486371 972742 1459113 2918226 44900917 89801834 134702751 269405502 6780038467 13560076934 20340115401 40680230802 144625853657 289251707314 433877560971 867755121942 21838503902207 43677007804414 65515511706621 131031023413242