Base | Representation |
---|---|
bin | 10010011101000… |
… | …00111111010001 |
3 | 101210021122210100 |
4 | 21032200333101 |
5 | 304112100311 |
6 | 23205523013 |
7 | 3556531122 |
oct | 1116407721 |
9 | 353248710 |
10 | 154800081 |
11 | 7a420657 |
12 | 43a13469 |
13 | 260bc9a7 |
14 | 167b8049 |
15 | d8cba56 |
hex | 93a0fd1 |
154800081 has 12 divisors (see below), whose sum is σ = 230813440. Its totient is φ = 99870840.
The previous prime is 154800073. The next prime is 154800091. The reversal of 154800081 is 180008451.
154800081 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.
It is not a de Polignac number, because 154800081 - 23 = 154800073 is a prime.
It is a super-2 number, since 2×1548000812 = 47926130155213122, which contains 22 as substring.
It is a Duffinian number.
It is a Curzon number.
It is not an unprimeable number, because it can be changed into a prime (154800091) by changing a digit.
It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 277141 + ... + 277698.
Almost surely, 2154800081 is an apocalyptic number.
It is an amenable number.
154800081 is a deficient number, since it is larger than the sum of its proper divisors (76013359).
154800081 is a wasteful number, since it uses less digits than its factorization.
154800081 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 554876 (or 554873 counting only the distinct ones).
The product of its (nonzero) digits is 1280, while the sum is 27.
The square root of 154800081 is about 12441.8680671353. The cubic root of 154800081 is about 536.9374894726.
The spelling of 154800081 in words is "one hundred fifty-four million, eight hundred thousand, eighty-one".
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