Base | Representation |
---|---|
bin | 10010110001100… |
… | …00110001001101 |
3 | 101222100010101122 |
4 | 21120300301031 |
5 | 310304024112 |
6 | 23343250325 |
7 | 3621416213 |
oct | 1130606115 |
9 | 358303348 |
10 | 157486157 |
11 | 80995754 |
12 | 448a99a5 |
13 | 2682049a |
14 | 16cb6cb3 |
15 | dc5c872 |
hex | 9630c4d |
157486157 has 2 divisors, whose sum is σ = 157486158. Its totient is φ = 157486156.
The previous prime is 157486139. The next prime is 157486183. The reversal of 157486157 is 751684751.
It is a weak prime.
It can be written as a sum of positive squares in only one way, i.e., 151634596 + 5851561 = 12314^2 + 2419^2 .
It is an emirp because it is prime and its reverse (751684751) is a distict prime.
It is a cyclic number.
It is not a de Polignac number, because 157486157 - 214 = 157469773 is a prime.
It is a Chen prime.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (157486457) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 78743078 + 78743079.
It is an arithmetic number, because the mean of its divisors is an integer number (78743079).
Almost surely, 2157486157 is an apocalyptic number.
It is an amenable number.
157486157 is a deficient number, since it is larger than the sum of its proper divisors (1).
157486157 is an equidigital number, since it uses as much as digits as its factorization.
157486157 is an evil number, because the sum of its binary digits is even.
The product of its digits is 235200, while the sum is 44.
The square root of 157486157 is about 12549.3488675708. The cubic root of 157486157 is about 540.0253268871.
The spelling of 157486157 in words is "one hundred fifty-seven million, four hundred eighty-six thousand, one hundred fifty-seven".
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