Base | Representation |
---|---|
bin | 11110001111111… |
… | …11101001001010 |
3 | 122200111000221201 |
4 | 33013333221022 |
5 | 1004430111210 |
6 | 41102454414 |
7 | 6200605243 |
oct | 1707775112 |
9 | 580430851 |
10 | 253753930 |
11 | 1202680a1 |
12 | 70b9440a |
13 | 40758271 |
14 | 259b5cca |
15 | 1742653a |
hex | f1ffa4a |
253753930 has 64 divisors (see below), whose sum is σ = 496419840. Its totient is φ = 93090816.
The previous prime is 253753921. The next prime is 253753933. The reversal of 253753930 is 39357352.
253753930 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.
It is a Smith number, since the sum of its digits (37) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.
It is a self number, because there is not a number n which added to its sum of digits gives 253753930.
It is not an unprimeable number, because it can be changed into a prime (253753933) by changing a digit.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1137799 + ... + 1138021.
It is an arithmetic number, because the mean of its divisors is an integer number (7756560).
Almost surely, 2253753930 is an apocalyptic number.
253753930 is a deficient number, since it is larger than the sum of its proper divisors (242665910).
253753930 is a wasteful number, since it uses less digits than its factorization.
253753930 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 415.
The product of its (nonzero) digits is 85050, while the sum is 37.
The square root of 253753930 is about 15929.6556773836. The cubic root of 253753930 is about 633.0979768762.
The spelling of 253753930 in words is "two hundred fifty-three million, seven hundred fifty-three thousand, nine hundred thirty".
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