Base | Representation |
---|---|
bin | 111101000111100011… |
… | …1110101010101100010 |
3 | 110112210001102201011000 |
4 | 1322033013311111202 |
5 | 4122300023323432 |
6 | 140143455332430 |
7 | 12324334261560 |
oct | 1721707652542 |
9 | 415701381130 |
10 | 131250214242 |
11 | 50732362644 |
12 | 2152b521116 |
13 | c4b8bcaa84 |
14 | 64d154aa30 |
15 | 36329bc57c |
hex | 1e8f1f5562 |
131250214242 has 128 divisors (see below), whose sum is σ = 348563865600. Its totient is φ = 35793603648.
The previous prime is 131250214241. The next prime is 131250214283. The reversal of 131250214242 is 242412052131.
131250214242 is a `hidden beast` number, since 1 + 3 + 12 + 502 + 142 + 4 + 2 = 666.
It is a Harshad number since it is a multiple of its sum of digits (27).
It is not an unprimeable number, because it can be changed into a prime (131250214241) by changing a digit.
It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 4148668 + ... + 4180184.
It is an arithmetic number, because the mean of its divisors is an integer number (2723155200).
Almost surely, 2131250214242 is an apocalyptic number.
It is a practical number, because each smaller number is the sum of distinct divisors of 131250214242, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (174281932800).
131250214242 is an abundant number, since it is smaller than the sum of its proper divisors (217313651358).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
131250214242 is a wasteful number, since it uses less digits than its factorization.
131250214242 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 32037 (or 32031 counting only the distinct ones).
The product of its (nonzero) digits is 3840, while the sum is 27.
Adding to 131250214242 its reverse (242412052131), we get a palindrome (373662266373).
The spelling of 131250214242 in words is "one hundred thirty-one billion, two hundred fifty million, two hundred fourteen thousand, two hundred forty-two".
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