Base | Representation |
---|---|
bin | 10010101110101… |
… | …10001011100001 |
3 | 101221122021101222 |
4 | 21113112023201 |
5 | 310210140410 |
6 | 23331304425 |
7 | 3615312350 |
oct | 1127261341 |
9 | 357567358 |
10 | 157115105 |
11 | 807619a4 |
12 | 4474b115 |
13 | 26720624 |
14 | 16c1b997 |
15 | dbd7955 |
hex | 95d62e1 |
157115105 has 16 divisors (see below), whose sum is σ = 228147840. Its totient is φ = 101398272.
The previous prime is 157115051. The next prime is 157115111. The reversal of 157115105 is 501511751.
157115105 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.
It is a cyclic number.
It is not a de Polignac number, because 157115105 - 28 = 157114849 is a prime.
It is a super-2 number, since 2×1571151052 = 49370312438322050, which contains 22 as substring.
It is an unprimeable number.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 131435 + ... + 132624.
It is an arithmetic number, because the mean of its divisors is an integer number (14259240).
Almost surely, 2157115105 is an apocalyptic number.
It is an amenable number.
157115105 is a deficient number, since it is larger than the sum of its proper divisors (71032735).
157115105 is a wasteful number, since it uses less digits than its factorization.
157115105 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 264088.
The product of its (nonzero) digits is 875, while the sum is 26.
The square root of 157115105 is about 12534.5564341145. The cubic root of 157115105 is about 539.6008767703.
Adding to 157115105 its reverse (501511751), we get a palindrome (658626856).
The spelling of 157115105 in words is "one hundred fifty-seven million, one hundred fifteen thousand, one hundred five".
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