Base | Representation |
---|---|
bin | 111101000111011101… |
… | …1100001001111001101 |
3 | 110112202211100201002111 |
4 | 1322032323201033031 |
5 | 4122243212024224 |
6 | 140143302224021 |
7 | 12324264655414 |
oct | 1721673411715 |
9 | 415684321074 |
10 | 131246986189 |
11 | 50730558330 |
12 | 2152a425011 |
13 | c4b833a697 |
14 | 64d0d4a47b |
15 | 3632580d94 |
hex | 1e8eee13cd |
131246986189 has 16 divisors (see below), whose sum is σ = 144159358464. Its totient is φ = 118498446000.
The previous prime is 131246986183. The next prime is 131246986217. The reversal of 131246986189 is 981689642131.
It is a de Polignac number, because none of the positive numbers 2k-131246986189 is a prime.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (131246986183) 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, 13221582 + ... + 13231504.
It is an arithmetic number, because the mean of its divisors is an integer number (9009959904).
Almost surely, 2131246986189 is an apocalyptic number.
It is an amenable number.
131246986189 is a deficient number, since it is larger than the sum of its proper divisors (12912372275).
131246986189 is a wasteful number, since it uses less digits than its factorization.
131246986189 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 18048.
The product of its digits is 4478976, while the sum is 58.
The spelling of 131246986189 in words is "one hundred thirty-one billion, two hundred forty-six million, nine hundred eighty-six thousand, one hundred eighty-nine".
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