Base | Representation |
---|---|
bin | 1111101001000… |
… | …00000100000010 |
3 | 100010212211010121 |
4 | 13310200010002 |
5 | 232042001310 |
6 | 21004050454 |
7 | 3152131666 |
oct | 764400402 |
9 | 303784117 |
10 | 131203330 |
11 | 68074005 |
12 | 37b33a2a |
13 | 2124a40b |
14 | 135d48a6 |
15 | b7ba0da |
hex | 7d20102 |
131203330 has 32 divisors (see below), whose sum is σ = 239453424. Its totient is φ = 51757056.
The previous prime is 131203309. The next prime is 131203333. The reversal of 131203330 is 33302131.
It can be written as a sum of positive squares in 8 ways, for example, as 8059921 + 123143409 = 2839^2 + 11097^2 .
It is not an unprimeable number, because it can be changed into a prime (131203333) by changing a digit.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 302794 + ... + 303226.
Almost surely, 2131203330 is an apocalyptic number.
131203330 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
131203330 is a deficient number, since it is larger than the sum of its proper divisors (108250094).
131203330 is a wasteful number, since it uses less digits than its factorization.
131203330 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 790.
The product of its (nonzero) digits is 162, while the sum is 16.
The square root of 131203330 is about 11454.4022105040. The cubic root of 131203330 is about 508.1379360691.
Adding to 131203330 its reverse (33302131), we get a palindrome (164505461).
The spelling of 131203330 in words is "one hundred thirty-one million, two hundred three thousand, three hundred thirty".
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