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131445848544131 = 112291311631754303
BaseRepresentation
bin11101111000110010011111…
…000111000001001110000011
3122020102002201012010110000202
4131320302133013001032003
5114212102044211403011
61143321220022035415
736454435443435422
oct3570623707011603
9566362635113022
10131445848544131
1138978964798300
12128ab104878b6b
1358463a0b1b8c4
1424660279db2b9
15102e31c8ac23b
hex778c9f1c1383

131445848544131 has 48 divisors (see below), whose sum is σ = 151528920238080. Its totient is φ = 113792448369600.

The previous prime is 131445848544119. The next prime is 131445848544133.

It is a happy number.

131445848544131 is nontrivially palindromic in base 10.

It is a de Polignac number, because none of the positive numbers 2k-131445848544131 is a prime.

It is a super-2 number, since 2×1314458485441312 (a number of 29 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (131445848544133) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 74050526 + ... + 75804828.

It is an arithmetic number, because the mean of its divisors is an integer number (3156852504960).

Almost surely, 2131445848544131 is an apocalyptic number.

131445848544131 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

131445848544131 is a deficient number, since it is larger than the sum of its proper divisors (20083071693949).

131445848544131 is a wasteful number, since it uses less digits than its factorization.

131445848544131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1754648 (or 1754637 counting only the distinct ones).

The product of its digits is 14745600, while the sum is 56.

The spelling of 131445848544131 in words is "one hundred thirty-one trillion, four hundred forty-five billion, eight hundred forty-eight million, five hundred forty-four thousand, one hundred thirty-one".

Divisors: 1 11 29 121 131 163 319 1441 1793 3509 3799 4727 15851 19723 21353 41789 51997 234883 459679 571967 619237 1754303 2583713 6811607 19297333 50874787 74927677 212270663 229813693 285951389 559622657 2527950623 3145465279 6155849227 6664597097 8292590281 27807456853 34600118069 37459631959 73310568067 91218493091 412055951549 806416248737 1003403424001 1086329326811 4532615467039 11949622594921 131445848544131