Base | Representation |
---|---|
bin | 1111101011100… |
… | …10100010011111 |
3 | 100011111222112111 |
4 | 13311302202133 |
5 | 232133304101 |
6 | 21015214451 |
7 | 3155036620 |
oct | 765624237 |
9 | 304458474 |
10 | 131541151 |
11 | 682848a5 |
12 | 38077427 |
13 | 21338101 |
14 | 13681a47 |
15 | b835251 |
hex | 7d7289f |
131541151 has 4 divisors (see below), whose sum is σ = 150332752. Its totient is φ = 112749552.
The previous prime is 131541143. The next prime is 131541169. The reversal of 131541151 is 151145131.
It is a semiprime because it is the product of two primes.
It is a cyclic number.
It is not a de Polignac number, because 131541151 - 23 = 131541143 is a prime.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (131541101) 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 3 ways as a sum of consecutive naturals, for example, 9395790 + ... + 9395803.
It is an arithmetic number, because the mean of its divisors is an integer number (37583188).
Almost surely, 2131541151 is an apocalyptic number.
131541151 is a deficient number, since it is larger than the sum of its proper divisors (18791601).
131541151 is an equidigital number, since it uses as much as digits as its factorization.
131541151 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 18791600.
The product of its digits is 300, while the sum is 22.
The square root of 131541151 is about 11469.1390696948. The cubic root of 131541151 is about 508.5736784315.
Adding to 131541151 its reverse (151145131), we get a palindrome (282686282).
The spelling of 131541151 in words is "one hundred thirty-one million, five hundred forty-one thousand, one hundred fifty-one".
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