Base | Representation |
---|---|
bin | 11001101000101… |
… | …01011110011001 |
3 | 112222122110201012 |
4 | 30310111132121 |
5 | 420022433131 |
6 | 33201103305 |
7 | 5220601250 |
oct | 1464253631 |
9 | 488573635 |
10 | 215046041 |
11 | 10042a301 |
12 | 60027b35 |
13 | 357248a2 |
14 | 207bb797 |
15 | 13d2c52b |
hex | cd15799 |
215046041 has 4 divisors (see below), whose sum is σ = 245766912. Its totient is φ = 184325172.
The previous prime is 215046037. The next prime is 215046043. The reversal of 215046041 is 140640512.
It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.
It is a cyclic number.
It is not a de Polignac number, because 215046041 - 22 = 215046037 is a prime.
It is a Duffinian number.
It is a junction number, because it is equal to n+sod(n) for n = 215045998 and 215046016.
It is not an unprimeable number, because it can be changed into a prime (215046043) 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, 15360425 + ... + 15360438.
It is an arithmetic number, because the mean of its divisors is an integer number (61441728).
Almost surely, 2215046041 is an apocalyptic number.
It is an amenable number.
215046041 is a deficient number, since it is larger than the sum of its proper divisors (30720871).
215046041 is an equidigital number, since it uses as much as digits as its factorization.
215046041 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 30720870.
The product of its (nonzero) digits is 960, while the sum is 23.
The square root of 215046041 is about 14664.4481996426. The cubic root of 215046041 is about 599.1154010785.
Adding to 215046041 its reverse (140640512), we get a palindrome (355686553).
The spelling of 215046041 in words is "two hundred fifteen million, forty-six thousand, forty-one".
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