Base | Representation |
---|---|
bin | 111101001101000100… |
… | …0110110011010000001 |
3 | 110120020221012022220110 |
4 | 1322122020312122001 |
5 | 4123134331431040 |
6 | 140214100501533 |
7 | 12332040215466 |
oct | 1723210663201 |
9 | 416227168813 |
10 | 131435030145 |
11 | 50817714561 |
12 | 215813aa8a9 |
13 | c5182999b3 |
14 | 650bcd966d |
15 | 3643d27980 |
hex | 1e9a236681 |
131435030145 has 32 divisors (see below), whose sum is σ = 213379622784. Its totient is φ = 69072652800.
The previous prime is 131435030143. The next prime is 131435030159. The reversal of 131435030145 is 541030534131.
It is not a de Polignac number, because 131435030145 - 21 = 131435030143 is a prime.
It is not an unprimeable number, because it can be changed into a prime (131435030143) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (17) of ones.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1105230 + ... + 1218360.
It is an arithmetic number, because the mean of its divisors is an integer number (6668113212).
Almost surely, 2131435030145 is an apocalyptic number.
131435030145 is a gapful number since it is divisible by the number (15) formed by its first and last digit.
It is an amenable number.
131435030145 is a deficient number, since it is larger than the sum of its proper divisors (81944592639).
131435030145 is a wasteful number, since it uses less digits than its factorization.
131435030145 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 114273.
The product of its (nonzero) digits is 10800, while the sum is 30.
Adding to 131435030145 its reverse (541030534131), we get a palindrome (672465564276).
The spelling of 131435030145 in words is "one hundred thirty-one billion, four hundred thirty-five million, thirty thousand, one hundred forty-five".
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