Base | Representation |
---|---|
bin | 10011101011111… |
… | …00010000101000 |
3 | 102111201202011221 |
4 | 21311330100220 |
5 | 314233313100 |
6 | 24215231424 |
7 | 4043425213 |
oct | 1165742050 |
9 | 374652157 |
10 | 165135400 |
11 | 8523a741 |
12 | 47378574 |
13 | 2829b071 |
14 | 17d0877a |
15 | e76e01a |
hex | 9d7c428 |
165135400 has 48 divisors (see below), whose sum is σ = 400644000. Its totient is φ = 63180480.
The previous prime is 165135361. The next prime is 165135401. The reversal of 165135400 is 4531561.
It is a Harshad number since it is a multiple of its sum of digits (25).
It is not an unprimeable number, because it can be changed into a prime (165135401) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (13) of ones.
It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 13350 + ... + 22549.
It is an arithmetic number, because the mean of its divisors is an integer number (8346750).
Almost surely, 2165135400 is an apocalyptic number.
165135400 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
It is an amenable number.
165135400 is an abundant number, since it is smaller than the sum of its proper divisors (235508600).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
165135400 is a wasteful number, since it uses less digits than its factorization.
165135400 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 35938 (or 35929 counting only the distinct ones).
The product of its (nonzero) digits is 1800, while the sum is 25.
The square root of 165135400 is about 12850.5019357222. The cubic root of 165135400 is about 548.6306430737.
Adding to 165135400 its reverse (4531561), we get a palindrome (169666961).
The spelling of 165135400 in words is "one hundred sixty-five million, one hundred thirty-five thousand, four hundred".
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