Base | Representation |
---|---|
bin | 10110101101101… |
… | …101001001011001 |
3 | 222120001212200202 |
4 | 112231231021121 |
5 | 1240024031103 |
6 | 101451511545 |
7 | 12305061566 |
oct | 2655551131 |
9 | 876055622 |
10 | 381080153 |
11 | 186123183 |
12 | a77585b5 |
13 | 60c48a1c |
14 | 3887b86d |
15 | 236c7988 |
hex | 16b6d259 |
381080153 has 2 divisors, whose sum is σ = 381080154. Its totient is φ = 381080152.
The previous prime is 381080107. The next prime is 381080173. The reversal of 381080153 is 351080183.
It is a strong prime.
It can be written as a sum of positive squares in only one way, i.e., 297321049 + 83759104 = 17243^2 + 9152^2 .
It is an emirp because it is prime and its reverse (351080183) is a distict prime.
It is a cyclic number.
It is not a de Polignac number, because 381080153 - 212 = 381076057 is a prime.
It is not a weakly prime, because it can be changed into another prime (381080173) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 190540076 + 190540077.
It is an arithmetic number, because the mean of its divisors is an integer number (190540077).
Almost surely, 2381080153 is an apocalyptic number.
It is an amenable number.
381080153 is a deficient number, since it is larger than the sum of its proper divisors (1).
381080153 is an equidigital number, since it uses as much as digits as its factorization.
381080153 is an evil number, because the sum of its binary digits is even.
The product of its (nonzero) digits is 2880, while the sum is 29.
The square root of 381080153 is about 19521.2743692619. The cubic root of 381080153 is about 725.0012860857.
The spelling of 381080153 in words is "three hundred eighty-one million, eighty thousand, one hundred fifty-three".
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