Base | Representation |
---|---|
bin | 1100101011111… |
… | …1111100011001 |
3 | 10201010121020222 |
4 | 3022333330121 |
5 | 102110340001 |
6 | 5140325425 |
7 | 1214214530 |
oct | 312777431 |
9 | 121117228 |
10 | 53215001 |
11 | 28047244 |
12 | 159a3875 |
13 | b042888 |
14 | 70d3317 |
15 | 4a1261b |
hex | 32bff19 |
53215001 has 4 divisors (see below), whose sum is σ = 60817152. Its totient is φ = 45612852.
The previous prime is 53214989. The next prime is 53215009. The reversal of 53215001 is 10051235.
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 53215001 - 210 = 53213977 is a prime.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (53215009) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (17) of ones.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3801065 + ... + 3801078.
It is an arithmetic number, because the mean of its divisors is an integer number (15204288).
Almost surely, 253215001 is an apocalyptic number.
It is an amenable number.
53215001 is a deficient number, since it is larger than the sum of its proper divisors (7602151).
53215001 is an equidigital number, since it uses as much as digits as its factorization.
53215001 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 7602150.
The product of its (nonzero) digits is 150, while the sum is 17.
The square root of 53215001 is about 7294.8612735267. The cubic root of 53215001 is about 376.1358179366.
Adding to 53215001 its reverse (10051235), we get a palindrome (63266236).
The spelling of 53215001 in words is "fifty-three million, two hundred fifteen thousand, one".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.068 sec. • engine limits •