Base | Representation |
---|---|
bin | 11110001001001… |
… | …11111000010000 |
3 | 122121211010122111 |
4 | 33010213320100 |
5 | 1004213321120 |
6 | 41031515104 |
7 | 6160234534 |
oct | 1704477020 |
9 | 577733574 |
10 | 252870160 |
11 | 11a814104 |
12 | 70828a94 |
13 | 40508c1a |
14 | 25825bc4 |
15 | 172ee75a |
hex | f127e10 |
252870160 has 20 divisors (see below), whose sum is σ = 587923308. Its totient is φ = 101148032.
The previous prime is 252870151. The next prime is 252870161. The reversal of 252870160 is 61078252.
It can be written as a sum of positive squares in 2 ways, for example, as 115605504 + 137264656 = 10752^2 + 11716^2 .
It is a tau number, because it is divible by the number of its divisors (20).
It is not an unprimeable number, because it can be changed into a prime (252870161) 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 3 ways as a sum of consecutive naturals, for example, 1580359 + ... + 1580518.
Almost surely, 2252870160 is an apocalyptic number.
252870160 is a gapful number since it is divisible by the number (20) formed by its first and last digit.
It is an amenable number.
252870160 is an abundant number, since it is smaller than the sum of its proper divisors (335053148).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
252870160 is a wasteful number, since it uses less digits than its factorization.
252870160 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 3160890 (or 3160884 counting only the distinct ones).
The product of its (nonzero) digits is 6720, while the sum is 31.
The square root of 252870160 is about 15901.8917113657. The cubic root of 252870160 is about 632.3621408993.
The spelling of 252870160 in words is "two hundred fifty-two million, eight hundred seventy thousand, one hundred sixty".
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