Base | Representation |
---|---|
bin | 11111001101000110111101 |
3 | 120101121001210 |
4 | 133031012331 |
5 | 4043231112 |
6 | 451155033 |
7 | 126346566 |
oct | 37150675 |
9 | 16347053 |
10 | 8180157 |
11 | 4687967 |
12 | 28a5a79 |
13 | 190543b |
14 | 112d16d |
15 | ab8b3c |
hex | 7cd1bd |
8180157 has 16 divisors (see below), whose sum is σ = 11501568. Its totient is φ = 5161200.
The previous prime is 8180153. The next prime is 8180177. The reversal of 8180157 is 7510818.
It is not a de Polignac number, because 8180157 - 22 = 8180153 is a prime.
8180157 is a lucky number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (8180153) by changing a digit.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6532 + ... + 7682.
It is an arithmetic number, because the mean of its divisors is an integer number (718848).
Almost surely, 28180157 is an apocalyptic number.
It is an amenable number.
8180157 is a deficient number, since it is larger than the sum of its proper divisors (3321411).
8180157 is a wasteful number, since it uses less digits than its factorization.
8180157 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 1280.
The product of its (nonzero) digits is 2240, while the sum is 30.
The square root of 8180157 is about 2860.0973759647. The cubic root of 8180157 is about 201.4901776107.
The spelling of 8180157 in words is "eight million, one hundred eighty thousand, one hundred fifty-seven".
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