Base | Representation |
---|---|
bin | 1011111101111… |
… | …01000011001111 |
3 | 20222220021220202 |
4 | 11332331003033 |
5 | 201144422241 |
6 | 13543404115 |
7 | 2326202336 |
oct | 576750317 |
9 | 228807822 |
10 | 100389071 |
11 | 51737882 |
12 | 2975363b |
13 | 17a4b923 |
14 | d492d1d |
15 | 8c2ed9b |
hex | 5fbd0cf |
100389071 has 2 divisors, whose sum is σ = 100389072. Its totient is φ = 100389070.
The previous prime is 100389061. The next prime is 100389073. The reversal of 100389071 is 170983001.
It is a strong prime.
It is a cyclic number.
It is not a de Polignac number, because 100389071 - 210 = 100388047 is a prime.
Together with 100389073, it forms a pair of twin primes.
It is a Chen prime.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (100389073) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50194535 + 50194536.
It is an arithmetic number, because the mean of its divisors is an integer number (50194536).
Almost surely, 2100389071 is an apocalyptic number.
100389071 is a deficient number, since it is larger than the sum of its proper divisors (1).
100389071 is an equidigital number, since it uses as much as digits as its factorization.
100389071 is an evil number, because the sum of its binary digits is even.
The product of its (nonzero) digits is 1512, while the sum is 29.
The square root of 100389071 is about 10019.4346646904. The cubic root of 100389071 is about 464.7600735516.
The spelling of 100389071 in words is "one hundred million, three hundred eighty-nine thousand, seventy-one".
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