Base | Representation |
---|---|
bin | 10111111111011… |
… | …00001100100000 |
3 | 112000200022220000 |
4 | 23333230030200 |
5 | 403004323342 |
6 | 31545220000 |
7 | 4662362331 |
oct | 1377541440 |
9 | 460608800 |
10 | 201245472 |
11 | a366377a |
12 | 57491600 |
13 | 3290217c |
14 | 1ca28288 |
15 | 12a0344c |
hex | bfec320 |
201245472 has 60 divisors (see below), whose sum is σ = 591864966. Its totient is φ = 67080960.
The previous prime is 201245467. The next prime is 201245477. The reversal of 201245472 is 274542102.
201245472 is a `hidden beast` number, since 201 + 2 + 454 + 7 + 2 = 666.
It is an interprime number because it is at equal distance from previous prime (201245467) and next prime (201245477).
It can be written as a sum of positive squares in only one way, i.e., 198133776 + 3111696 = 14076^2 + 1764^2 .
It is a Harshad number since it is a multiple of its sum of digits (27).
It is not an unprimeable number, because it can be changed into a prime (201245477) by changing a digit.
It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 36229 + ... + 41412.
Almost surely, 2201245472 is an apocalyptic number.
It is an amenable number.
201245472 is an abundant number, since it is smaller than the sum of its proper divisors (390619494).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
201245472 is an equidigital number, since it uses as much as digits as its factorization.
201245472 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 77663 (or 77646 counting only the distinct ones).
The product of its (nonzero) digits is 4480, while the sum is 27.
The square root of 201245472 is about 14186.1013671833. The cubic root of 201245472 is about 586.0149638768.
Adding to 201245472 its reverse (274542102), we get a palindrome (475787574).
The spelling of 201245472 in words is "two hundred one million, two hundred forty-five thousand, four hundred seventy-two".
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