Base | Representation |
---|---|
bin | 1110110011101… |
… | …01011010101011 |
3 | 22122201200002001 |
4 | 13121311122223 |
5 | 223244303112 |
6 | 20154151431 |
7 | 3035535520 |
oct | 731653253 |
9 | 278650061 |
10 | 124212907 |
11 | 64129aa5 |
12 | 35722577 |
13 | 1c970680 |
14 | 126d5147 |
15 | ad88c57 |
hex | 76756ab |
124212907 has 16 divisors (see below), whose sum is σ = 153280512. Its totient is φ = 98019360.
The previous prime is 124212901. The next prime is 124212917. The reversal of 124212907 is 709212421.
It is a cyclic number.
It is not a de Polignac number, because 124212907 - 27 = 124212779 is a prime.
It is not an unprimeable number, because it can be changed into a prime (124212901) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (17) of ones.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 37638 + ... + 40804.
It is an arithmetic number, because the mean of its divisors is an integer number (9580032).
Almost surely, 2124212907 is an apocalyptic number.
124212907 is a deficient number, since it is larger than the sum of its proper divisors (29067605).
124212907 is a wasteful number, since it uses less digits than its factorization.
124212907 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 3618.
The product of its (nonzero) digits is 2016, while the sum is 28.
The square root of 124212907 is about 11145.0844321611. The cubic root of 124212907 is about 498.9483322072.
The spelling of 124212907 in words is "one hundred twenty-four million, two hundred twelve thousand, nine hundred seven".
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