Base | Representation |
---|---|
bin | 1111101000010… |
… | …01010011010101 |
3 | 100010201002020200 |
4 | 13310021103111 |
5 | 232031010401 |
6 | 21002051113 |
7 | 3151263123 |
oct | 764112325 |
9 | 303632220 |
10 | 131110101 |
11 | 6800aa61 |
12 | 37aa9a99 |
13 | 21216b55 |
14 | 135ac913 |
15 | b79c686 |
hex | 7d094d5 |
131110101 has 24 divisors (see below), whose sum is σ = 192052224. Its totient is φ = 86184000.
The previous prime is 131110081. The next prime is 131110141. The reversal of 131110101 is 101011131.
It is not a de Polignac number, because 131110101 - 211 = 131108053 is a prime.
It is a Harshad number since it is a multiple of its sum of digits (9).
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (131110141) by changing a digit.
It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 286665 + ... + 287121.
It is an arithmetic number, because the mean of its divisors is an integer number (8002176).
Almost surely, 2131110101 is an apocalyptic number.
It is an amenable number.
131110101 is a deficient number, since it is larger than the sum of its proper divisors (60942123).
131110101 is a wasteful number, since it uses less digits than its factorization.
131110101 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 841 (or 838 counting only the distinct ones).
The product of its (nonzero) digits is 3, while the sum is 9.
The square root of 131110101 is about 11450.3319165865. The cubic root of 131110101 is about 508.0175518870.
Adding to 131110101 its reverse (101011131), we get a palindrome (232121232).
The spelling of 131110101 in words is "one hundred thirty-one million, one hundred ten thousand, one hundred one".
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