Base | Representation |
---|---|
bin | 1111100111100… |
… | …00111010010101 |
3 | 100010112000012112 |
4 | 13303300322111 |
5 | 232014311242 |
6 | 21000000405 |
7 | 3150365633 |
oct | 763607225 |
9 | 303460175 |
10 | 131010197 |
11 | 67a5199a |
12 | 37a60105 |
13 | 211b0536 |
14 | 13584353 |
15 | b77cc82 |
hex | 7cf0e95 |
131010197 has 16 divisors (see below), whose sum is σ = 139311360. Its totient is φ = 122998848.
The previous prime is 131010179. The next prime is 131010227. The reversal of 131010197 is 791010131.
It is a cyclic number.
It is not a de Polignac number, because 131010197 - 26 = 131010133 is a prime.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (131010157) 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, 377378 + ... + 377724.
It is an arithmetic number, because the mean of its divisors is an integer number (8706960).
Almost surely, 2131010197 is an apocalyptic number.
It is an amenable number.
131010197 is a deficient number, since it is larger than the sum of its proper divisors (8301163).
131010197 is a wasteful number, since it uses less digits than its factorization.
131010197 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 700.
The product of its (nonzero) digits is 189, while the sum is 23.
The square root of 131010197 is about 11445.9685916046. The cubic root of 131010197 is about 507.8884850910. Note that the first 3 decimals are identical.
The spelling of 131010197 in words is "one hundred thirty-one million, ten thousand, one hundred ninety-seven".
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