Base | Representation |
---|---|
bin | 111011001110… |
… | …1110111000101 |
3 | 2011102202212100 |
4 | 1312131313011 |
5 | 30422232201 |
6 | 3025342313 |
7 | 524652144 |
oct | 166356705 |
9 | 64382770 |
10 | 31055301 |
11 | 16591342 |
12 | a497999 |
13 | 6584424 |
14 | 41a575b |
15 | 2ad6886 |
hex | 1d9ddc5 |
31055301 has 12 divisors (see below), whose sum is σ = 45023212. Its totient is φ = 20627136.
The previous prime is 31055293. The next prime is 31055333. The reversal of 31055301 is 10355013.
It is a happy number.
31055301 is a `hidden beast` number, since 310 + 55 + 301 = 666.
It can be written as a sum of positive squares in 2 ways, for example, as 15444900 + 15610401 = 3930^2 + 3951^2 .
It is not a de Polignac number, because 31055301 - 23 = 31055293 is a prime.
It is a super-3 number, since 3×310553013 (a number of 23 digits) contains 333 as substring.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (31055351) by changing a digit.
It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3736 + ... + 8721.
Almost surely, 231055301 is an apocalyptic number.
It is an amenable number.
31055301 is a deficient number, since it is larger than the sum of its proper divisors (13967911).
31055301 is a wasteful number, since it uses less digits than its factorization.
31055301 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 12740 (or 12737 counting only the distinct ones).
The product of its (nonzero) digits is 225, while the sum is 18.
The square root of 31055301 is about 5572.7283264125. The cubic root of 31055301 is about 314.3247515756.
It can be divided in two parts, 310 and 55301, that added together give a triangular number (55611 = T333).
The spelling of 31055301 in words is "thirty-one million, fifty-five thousand, three hundred one".
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