Base | Representation |
---|---|
bin | 11110001010010… |
… | …10100100010101 |
3 | 122122002100112220 |
4 | 33011022210111 |
5 | 1004232342440 |
6 | 41034532553 |
7 | 6161366013 |
oct | 1705124425 |
9 | 578070486 |
10 | 253012245 |
11 | 11a900932 |
12 | 70897159 |
13 | 405587b5 |
14 | 258618b3 |
15 | 1732b8d0 |
hex | f14a915 |
253012245 has 8 divisors (see below), whose sum is σ = 404819616. Its totient is φ = 134939856.
The previous prime is 253012229. The next prime is 253012247. The reversal of 253012245 is 542210352.
It is a sphenic number, since it is the product of 3 distinct primes.
It is not a de Polignac number, because 253012245 - 24 = 253012229 is a prime.
It is a super-2 number, since 2×2530122452 = 128030392239880050, which contains 22 as substring.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (253012247) 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 7 ways as a sum of consecutive naturals, for example, 8433727 + ... + 8433756.
It is an arithmetic number, because the mean of its divisors is an integer number (50602452).
Almost surely, 2253012245 is an apocalyptic number.
It is an amenable number.
253012245 is a deficient number, since it is larger than the sum of its proper divisors (151807371).
253012245 is a wasteful number, since it uses less digits than its factorization.
253012245 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 16867491.
The product of its (nonzero) digits is 2400, while the sum is 24.
The square root of 253012245 is about 15906.3586342066. The cubic root of 253012245 is about 632.4805578655.
Adding to 253012245 its reverse (542210352), we get a palindrome (795222597).
The spelling of 253012245 in words is "two hundred fifty-three million, twelve thousand, two hundred forty-five".
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