Base | Representation |
---|---|
bin | 1111101001001… |
… | …10110100000110 |
3 | 100010221020001202 |
4 | 13310212310012 |
5 | 232043342412 |
6 | 21004422502 |
7 | 3152305421 |
oct | 764466406 |
9 | 303836052 |
10 | 131230982 |
11 | 68092863 |
12 | 37b47a32 |
13 | 21259b8c |
14 | 136009b8 |
15 | b7c33c2 |
hex | 7d26d06 |
131230982 has 4 divisors (see below), whose sum is σ = 196846476. Its totient is φ = 65615490.
The previous prime is 131230907. The next prime is 131230987. The reversal of 131230982 is 289032131.
It is a semiprime because it is the product of two primes.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (131230987) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32807744 + ... + 32807747.
It is an arithmetic number, because the mean of its divisors is an integer number (49211619).
Almost surely, 2131230982 is an apocalyptic number.
131230982 is a deficient number, since it is larger than the sum of its proper divisors (65615494).
131230982 is an equidigital number, since it uses as much as digits as its factorization.
131230982 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 65615493.
The product of its (nonzero) digits is 2592, while the sum is 29.
The square root of 131230982 is about 11455.6091937531. The cubic root of 131230982 is about 508.1736314111.
The spelling of 131230982 in words is "one hundred thirty-one million, two hundred thirty thousand, nine hundred eighty-two".
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