Base | Representation |
---|---|
bin | 1111101110100… |
… | …01100100000000 |
3 | 100012020202102221 |
4 | 13313101210000 |
5 | 232233232433 |
6 | 21031420424 |
7 | 3161250433 |
oct | 767214400 |
9 | 305222387 |
10 | 131930368 |
11 | 68520269 |
12 | 38224714 |
13 | 2144330b |
14 | 1374381a |
15 | b8b072d |
hex | 7dd1900 |
131930368 has 36 divisors (see below), whose sum is σ = 264640768. Its totient is φ = 65640960.
The previous prime is 131930347. The next prime is 131930371. The reversal of 131930368 is 863039131.
It is an unprimeable number.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 55933 + ... + 58243.
Almost surely, 2131930368 is an apocalyptic number.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 131930368, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (132320384).
131930368 is an abundant number, since it is smaller than the sum of its proper divisors (132710400).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
131930368 is an equidigital number, since it uses as much as digits as its factorization.
131930368 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 2550 (or 2536 counting only the distinct ones).
The product of its (nonzero) digits is 11664, while the sum is 34.
The square root of 131930368 is about 11486.0945494977. The cubic root of 131930368 is about 509.0747905843.
Adding to 131930368 its reverse (863039131), we get a palindrome (994969499).
The spelling of 131930368 in words is "one hundred thirty-one million, nine hundred thirty thousand, three hundred sixty-eight".
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