Base | Representation |
---|---|
bin | 1001001001011010001… |
… | …1000001011010011111 |
3 | 120000121200021002012200 |
4 | 2102112203001122133 |
5 | 10033313003222022 |
6 | 200105145502543 |
7 | 14232121640502 |
oct | 2222643013237 |
9 | 500550232180 |
10 | 157144585887 |
11 | 60710027293 |
12 | 265574a1a53 |
13 | 11a84809b83 |
14 | 786a5c7139 |
15 | 414ae58bac |
hex | 24968c169f |
157144585887 has 6 divisors (see below), whose sum is σ = 226986624072. Its totient is φ = 104763057252.
The previous prime is 157144585883. The next prime is 157144585903. The reversal of 157144585887 is 788585441751.
157144585887 is a `hidden beast` number, since 1 + 5 + 7 + 1 + 4 + 45 + 8 + 588 + 7 = 666.
It is not a de Polignac number, because 157144585887 - 22 = 157144585883 is a prime.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (157144585883) by changing a digit.
It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 8730254763 + ... + 8730254780.
It is an arithmetic number, because the mean of its divisors is an integer number (37831104012).
Almost surely, 2157144585887 is an apocalyptic number.
157144585887 is a deficient number, since it is larger than the sum of its proper divisors (69842038185).
157144585887 is a wasteful number, since it uses less digits than its factorization.
157144585887 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 17460509549 (or 17460509546 counting only the distinct ones).
The product of its digits is 50176000, while the sum is 63.
The spelling of 157144585887 in words is "one hundred fifty-seven billion, one hundred forty-four million, five hundred eighty-five thousand, eight hundred eighty-seven".
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