Base | Representation |
---|---|
bin | 1110100110011… |
… | …1100010000000 |
3 | 11021020101111200 |
4 | 3221213202000 |
5 | 111134211342 |
6 | 10024341200 |
7 | 1342354365 |
oct | 351474200 |
9 | 137211450 |
10 | 61241472 |
11 | 31629696 |
12 | 18614800 |
13 | c8c3076 |
14 | 81c246c |
15 | 559a94c |
hex | 3a67880 |
61241472 has 48 divisors (see below), whose sum is σ = 176232030. Its totient is φ = 20413440.
The previous prime is 61241471. The next prime is 61241491. The reversal of 61241472 is 27414216.
61241472 is a `hidden beast` number, since 612 + 4 + 1 + 47 + 2 = 666.
It can be written as a sum of positive squares in only one way, i.e., 48108096 + 13133376 = 6936^2 + 3624^2 .
It is a tau number, because it is divible by the number of its divisors (48).
It is not an unprimeable number, because it can be changed into a prime (61241471) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (11) of ones.
It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 25429 + ... + 27732.
Almost surely, 261241472 is an apocalyptic number.
It is an amenable number.
61241472 is an abundant number, since it is smaller than the sum of its proper divisors (114990558).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
61241472 is a wasteful number, since it uses less digits than its factorization.
61241472 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 53181 (or 53166 counting only the distinct ones).
The product of its digits is 2688, while the sum is 27.
The square root of 61241472 is about 7825.6930683486. The cubic root of 61241472 is about 394.1684627501.
Adding to 61241472 its reverse (27414216), we get a palindrome (88655688).
The spelling of 61241472 in words is "sixty-one million, two hundred forty-one thousand, four hundred seventy-two".
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