Base | Representation |
---|---|
bin | 1110111001100… |
… | …11001101001001 |
3 | 22201012011102200 |
4 | 13130303031021 |
5 | 223444142111 |
6 | 20222550413 |
7 | 3045254103 |
oct | 734631511 |
9 | 281164380 |
10 | 124990281 |
11 | 64610059 |
12 | 35a38409 |
13 | 1cb83460 |
14 | 12858573 |
15 | ae8e256 |
hex | 7733349 |
124990281 has 48 divisors (see below), whose sum is σ = 200945472. Its totient is φ = 74390400.
The previous prime is 124990279. The next prime is 124990339. The reversal of 124990281 is 182099421.
It is not a de Polignac number, because 124990281 - 21 = 124990279 is a prime.
It is a super-2 number, since 2×1249902812 = 31245140688917922, which contains 22 as substring.
It is not an unprimeable number, because it can be changed into a prime (124990781) by changing a digit.
It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 592266 + ... + 592476.
It is an arithmetic number, because the mean of its divisors is an integer number (4186364).
Almost surely, 2124990281 is an apocalyptic number.
It is an amenable number.
124990281 is a deficient number, since it is larger than the sum of its proper divisors (75955191).
124990281 is a wasteful number, since it uses less digits than its factorization.
124990281 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 374 (or 371 counting only the distinct ones).
The product of its (nonzero) digits is 10368, while the sum is 36.
The square root of 124990281 is about 11179.9052321565. The cubic root of 124990281 is about 499.9870409975.
The spelling of 124990281 in words is "one hundred twenty-four million, nine hundred ninety thousand, two hundred eighty-one".
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