Base | Representation |
---|---|
bin | 1110110101010… |
… | …10000011010101 |
3 | 22200010121211000 |
4 | 13122222003111 |
5 | 223323203001 |
6 | 20202533513 |
7 | 3040424211 |
oct | 732520325 |
9 | 280117730 |
10 | 124428501 |
11 | 64266a7a |
12 | 35807299 |
13 | 1ca17842 |
14 | 1274d941 |
15 | adcca86 |
hex | 76aa0d5 |
124428501 has 8 divisors (see below), whose sum is σ = 184338560. Its totient is φ = 82952316.
The previous prime is 124428487. The next prime is 124428503. The reversal of 124428501 is 105824421.
It is not a de Polignac number, because 124428501 - 217 = 124297429 is a prime.
It is a super-2 number, since 2×1244285012 = 30964903722214002, which contains 22 as substring.
It is a Harshad number since it is a multiple of its sum of digits (27), and also a Moran number because the ratio is a prime number: 4608463 = 124428501 / (1 + 2 + 4 + 4 + 2 + 8 + 5 + 0 + 1).
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (124428503) 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, 2304205 + ... + 2304258.
It is an arithmetic number, because the mean of its divisors is an integer number (23042320).
Almost surely, 2124428501 is an apocalyptic number.
It is an amenable number.
124428501 is a deficient number, since it is larger than the sum of its proper divisors (59910059).
124428501 is an equidigital number, since it uses as much as digits as its factorization.
124428501 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 4608472 (or 4608466 counting only the distinct ones).
The product of its (nonzero) digits is 2560, while the sum is 27.
The square root of 124428501 is about 11154.7523952798. The cubic root of 124428501 is about 499.2368370907.
The spelling of 124428501 in words is "one hundred twenty-four million, four hundred twenty-eight thousand, five hundred one".
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