Base | Representation |
---|---|
bin | 1111101001000… |
… | …11011010001101 |
3 | 100010220111221021 |
4 | 13310203122031 |
5 | 232042421122 |
6 | 21004234141 |
7 | 3152216650 |
oct | 764433215 |
9 | 303814837 |
10 | 131217037 |
11 | 68083336 |
12 | 37b3b951 |
13 | 21253723 |
14 | 135d9897 |
15 | b7be1c7 |
hex | 7d2368d |
131217037 has 16 divisors (see below), whose sum is σ = 154519552. Its totient is φ = 109090800.
The previous prime is 131216993. The next prime is 131217049. The reversal of 131217037 is 730712131.
It is not a de Polignac number, because 131217037 - 211 = 131214989 is a prime.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (131217137) 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, 44008 + ... + 46894.
It is an arithmetic number, because the mean of its divisors is an integer number (9657472).
Almost surely, 2131217037 is an apocalyptic number.
It is an amenable number.
131217037 is a deficient number, since it is larger than the sum of its proper divisors (23302515).
131217037 is a wasteful number, since it uses less digits than its factorization.
131217037 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 3088.
The product of its (nonzero) digits is 882, while the sum is 25.
The square root of 131217037 is about 11455.0005237887. Note that the first 3 decimals coincide. The cubic root of 131217037 is about 508.1556307525.
Adding to 131217037 its reverse (730712131), we get a palindrome (861929168).
The spelling of 131217037 in words is "one hundred thirty-one million, two hundred seventeen thousand, thirty-seven".
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