Base | Representation |
---|---|
bin | 1111101101011… |
… | …11001001100000 |
3 | 100011222121002012 |
4 | 13312233021200 |
5 | 232214230113 |
6 | 21024412052 |
7 | 3160122452 |
oct | 766571140 |
9 | 304877065 |
10 | 131789408 |
11 | 68434373 |
12 | 38177028 |
13 | 213c40ca |
14 | 137082d2 |
15 | b883aa8 |
hex | 7daf260 |
131789408 has 12 divisors (see below), whose sum is σ = 259460460. Its totient is φ = 65894688.
The previous prime is 131789407. The next prime is 131789447. The reversal of 131789408 is 804987131.
131789408 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (131789407) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2059178 + ... + 2059241.
It is an arithmetic number, because the mean of its divisors is an integer number (21621705).
Almost surely, 2131789408 is an apocalyptic number.
It is an amenable number.
131789408 is a deficient number, since it is larger than the sum of its proper divisors (127671052).
131789408 is an equidigital number, since it uses as much as digits as its factorization.
131789408 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 4118429 (or 4118421 counting only the distinct ones).
The product of its (nonzero) digits is 48384, while the sum is 41.
The square root of 131789408 is about 11479.9567943438. The cubic root of 131789408 is about 508.8934202761.
The spelling of 131789408 in words is "one hundred thirty-one million, seven hundred eighty-nine thousand, four hundred eight".
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