Base | Representation |
---|---|
bin | 11110001010011… |
… | …00010001001111 |
3 | 122122002201010001 |
4 | 33011030101033 |
5 | 1004233103330 |
6 | 41035025131 |
7 | 6161425231 |
oct | 1705142117 |
9 | 578081101 |
10 | 253019215 |
11 | 11a906099 |
12 | 7089b1a7 |
13 | 4055ba17 |
14 | 25864251 |
15 | 1732d9ca |
hex | f14c44f |
253019215 has 8 divisors (see below), whose sum is σ = 304405920. Its totient is φ = 201893472.
The previous prime is 253019201. The next prime is 253019231. The reversal of 253019215 is 512910352.
253019215 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.
It is a sphenic number, since it is the product of 3 distinct primes.
It is a cyclic number.
It is not a de Polignac number, because 253019215 - 25 = 253019183 is a prime.
It is a super-4 number, since 4×2530192154 (a number of 35 digits) contains 4444 as substring.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 63099 + ... + 66988.
It is an arithmetic number, because the mean of its divisors is an integer number (38050740).
Almost surely, 2253019215 is an apocalyptic number.
253019215 is a deficient number, since it is larger than the sum of its proper divisors (51386705).
253019215 is a wasteful number, since it uses less digits than its factorization.
253019215 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 130481.
The product of its (nonzero) digits is 2700, while the sum is 28.
The square root of 253019215 is about 15906.5777274686. The cubic root of 253019215 is about 632.4863656859.
Adding to 253019215 its reverse (512910352), we get a palindrome (765929567).
The spelling of 253019215 in words is "two hundred fifty-three million, nineteen thousand, two hundred fifteen".
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