Base | Representation |
---|---|
bin | 1111101001001… |
… | …11111101111100 |
3 | 100010221110112210 |
4 | 13310213331330 |
5 | 232044020313 |
6 | 21004500420 |
7 | 3152325252 |
oct | 764477574 |
9 | 303843483 |
10 | 131235708 |
11 | 6809636a |
12 | 37b4a710 |
13 | 2125c086 |
14 | 136025d2 |
15 | b7c49c3 |
hex | 7d27f7c |
131235708 has 12 divisors (see below), whose sum is σ = 306216680. Its totient is φ = 43745232.
The previous prime is 131235691. The next prime is 131235719. The reversal of 131235708 is 807532131.
It is a tau number, because it is divible by the number of its divisors (12).
It is a super-2 number, since 2×1312357082 = 34445622108522528, which contains 22 as substring.
It is a congruent number.
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (19) of ones.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5468143 + ... + 5468166.
Almost surely, 2131235708 is an apocalyptic number.
It is an amenable number.
131235708 is an abundant number, since it is smaller than the sum of its proper divisors (174980972).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
131235708 is a wasteful number, since it uses less digits than its factorization.
131235708 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 10936316 (or 10936314 counting only the distinct ones).
The product of its (nonzero) digits is 5040, while the sum is 30.
The square root of 131235708 is about 11455.8154663909. The cubic root of 131235708 is about 508.1797315960.
Adding to 131235708 its reverse (807532131), we get a palindrome (938767839).
The spelling of 131235708 in words is "one hundred thirty-one million, two hundred thirty-five thousand, seven hundred eight".
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