Base | Representation |
---|---|
bin | 1100110110110… |
… | …0000011011001 |
3 | 10202110102021121 |
4 | 3031230003121 |
5 | 102300414321 |
6 | 5203405241 |
7 | 1223212024 |
oct | 315540331 |
9 | 122412247 |
10 | 53919961 |
11 | 28488957 |
12 | 16083821 |
13 | b22b704 |
14 | 72381bb |
15 | 4b01441 |
hex | 336c0d9 |
53919961 has 16 divisors (see below), whose sum is σ = 57834000. Its totient is φ = 50176000.
The previous prime is 53919959. The next prime is 53919977. The reversal of 53919961 is 16991935.
53919961 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.
It can be written as a sum of positive squares in 8 ways, for example, as 337561 + 53582400 = 581^2 + 7320^2 .
It is a cyclic number.
It is not a de Polignac number, because 53919961 - 21 = 53919959 is a prime.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (53919941) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (13) of ones.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 119865 + ... + 120313.
It is an arithmetic number, because the mean of its divisors is an integer number (3614625).
Almost surely, 253919961 is an apocalyptic number.
It is an amenable number.
53919961 is a deficient number, since it is larger than the sum of its proper divisors (3914039).
53919961 is a wasteful number, since it uses less digits than its factorization.
53919961 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 620.
The product of its digits is 65610, while the sum is 43.
The square root of 53919961 is about 7343.0212446921. The cubic root of 53919961 is about 377.7894766626.
The spelling of 53919961 in words is "fifty-three million, nine hundred nineteen thousand, nine hundred sixty-one".
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