Base | Representation |
---|---|
bin | 11110001010101… |
… | …00100001111001 |
3 | 122122011102112011 |
4 | 33011110201321 |
5 | 1004240144144 |
6 | 41035445521 |
7 | 6161625664 |
oct | 1705244171 |
9 | 578142464 |
10 | 253053049 |
11 | 11a929557 |
12 | 708b68a1 |
13 | 40571242 |
14 | 258726db |
15 | 17338a34 |
hex | f154879 |
253053049 has 4 divisors (see below), whose sum is σ = 253224036. Its totient is φ = 252882064.
The previous prime is 253053019. The next prime is 253053089. The reversal of 253053049 is 940350352.
253053049 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.
It is a semiprime because it is the product of two primes.
It can be written as a sum of positive squares in 2 ways, for example, as 225961024 + 27092025 = 15032^2 + 5205^2 .
It is a cyclic number.
It is not a de Polignac number, because 253053049 - 29 = 253052537 is a prime.
It is a Duffinian number.
It is a self number, because there is not a number n which added to its sum of digits gives 253053049.
It is not an unprimeable number, because it can be changed into a prime (253053019) by changing a digit.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 83254 + ... + 86239.
It is an arithmetic number, because the mean of its divisors is an integer number (63306009).
Almost surely, 2253053049 is an apocalyptic number.
It is an amenable number.
253053049 is a deficient number, since it is larger than the sum of its proper divisors (170987).
253053049 is a wasteful number, since it uses less digits than its factorization.
253053049 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 170986.
The product of its (nonzero) digits is 16200, while the sum is 31.
The square root of 253053049 is about 15907.6412142090. The cubic root of 253053049 is about 632.5145566804.
The spelling of 253053049 in words is "two hundred fifty-three million, fifty-three thousand, forty-nine".
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