Base | Representation |
---|---|
bin | 1101000010110… |
… | …0011000110001 |
3 | 10210221102221101 |
4 | 3100230120301 |
5 | 103001122021 |
6 | 5232324401 |
7 | 1233002563 |
oct | 320543061 |
9 | 123842841 |
10 | 54707761 |
11 | 28976829 |
12 | 163a3701 |
13 | b446174 |
14 | 73a1333 |
15 | 4c09a91 |
hex | 342c631 |
54707761 has 4 divisors (see below), whose sum is σ = 55249524. Its totient is φ = 54166000.
The previous prime is 54707743. The next prime is 54707767. The reversal of 54707761 is 16770745.
It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 16770745 = 5 ⋅3354149.
It can be written as a sum of positive squares in 2 ways, for example, as 44823025 + 9884736 = 6695^2 + 3144^2 .
It is a cyclic number.
It is not a de Polignac number, because 54707761 - 29 = 54707249 is a prime.
It is a super-2 number, since 2×547077612 = 5985878227266242, which contains 22 as substring.
It is a Duffinian number.
It is a self number, because there is not a number n which added to its sum of digits gives 54707761.
It is not an unprimeable number, because it can be changed into a prime (54707767) 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 3 ways as a sum of consecutive naturals, for example, 270730 + ... + 270931.
It is an arithmetic number, because the mean of its divisors is an integer number (13812381).
Almost surely, 254707761 is an apocalyptic number.
It is an amenable number.
54707761 is a deficient number, since it is larger than the sum of its proper divisors (541763).
54707761 is a wasteful number, since it uses less digits than its factorization.
54707761 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 541762.
The product of its (nonzero) digits is 41160, while the sum is 37.
The square root of 54707761 is about 7396.4694956445. The cubic root of 54707761 is about 379.6204913761.
It can be divided in two parts, 5470 and 7761, that added together give a palindrome (13231).
The spelling of 54707761 in words is "fifty-four million, seven hundred seven thousand, seven hundred sixty-one".
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