Base | Representation |
---|---|
bin | 1110110010011… |
… | …01010100101001 |
3 | 22122102022210121 |
4 | 13121031110221 |
5 | 223224024211 |
6 | 20150443241 |
7 | 3034252651 |
oct | 731152451 |
9 | 278368717 |
10 | 124048681 |
11 | 64027679 |
12 | 35663521 |
13 | 1c9139b3 |
14 | 12691361 |
15 | ad55271 |
hex | 764d529 |
124048681 has 4 divisors (see below), whose sum is σ = 125748052. Its totient is φ = 122349312.
The previous prime is 124048607. The next prime is 124048699. The reversal of 124048681 is 186840421.
It is a semiprime because it is the product of two primes.
It can be written as a sum of positive squares in 2 ways, for example, as 29648025 + 94400656 = 5445^2 + 9716^2 .
It is a cyclic number.
It is not a de Polignac number, because 124048681 - 27 = 124048553 is a prime.
It is a super-2 number, since 2×1240486812 = 30776150515679522, which contains 22 as substring.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (124048601) by changing a digit.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 849576 + ... + 849721.
It is an arithmetic number, because the mean of its divisors is an integer number (31437013).
Almost surely, 2124048681 is an apocalyptic number.
It is an amenable number.
124048681 is a deficient number, since it is larger than the sum of its proper divisors (1699371).
124048681 is an equidigital number, since it uses as much as digits as its factorization.
124048681 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 1699370.
The product of its (nonzero) digits is 12288, while the sum is 34.
The square root of 124048681 is about 11137.7143525950. The cubic root of 124048681 is about 498.7283431864.
The spelling of 124048681 in words is "one hundred twenty-four million, forty-eight thousand, six hundred eighty-one".
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