Base | Representation |
---|---|
bin | 1110110101010… |
… | …00001011011110 |
3 | 22200010020021220 |
4 | 13122220023132 |
5 | 223322431310 |
6 | 20202434210 |
7 | 3040362642 |
oct | 732501336 |
9 | 280106256 |
10 | 124420830 |
11 | 64261236 |
12 | 35802966 |
13 | 1ca141c1 |
14 | 1274ac22 |
15 | adca670 |
hex | 76a82de |
124420830 has 16 divisors (see below), whose sum is σ = 298610064. Its totient is φ = 33178880.
The previous prime is 124420783. The next prime is 124420831. The reversal of 124420830 is 38024421.
It is a self number, because there is not a number n which added to its sum of digits gives 124420830.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (124420831) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2073651 + ... + 2073710.
It is an arithmetic number, because the mean of its divisors is an integer number (18663129).
Almost surely, 2124420830 is an apocalyptic number.
124420830 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
124420830 is an abundant number, since it is smaller than the sum of its proper divisors (174189234).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
124420830 is a wasteful number, since it uses less digits than its factorization.
124420830 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 4147371.
The product of its (nonzero) digits is 1536, while the sum is 24.
The square root of 124420830 is about 11154.4085455034. The cubic root of 124420830 is about 499.2265775857.
It can be divided in two parts, 124420 and 830, that added together give a triangular number (125250 = T500).
The spelling of 124420830 in words is "one hundred twenty-four million, four hundred twenty thousand, eight hundred thirty".
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