Base | Representation |
---|---|
bin | 1110010110110… |
… | …0111100101001 |
3 | 11012022020120012 |
4 | 3211230330221 |
5 | 110403340311 |
6 | 5550341305 |
7 | 1330551113 |
oct | 345547451 |
9 | 135266505 |
10 | 60215081 |
11 | 30a98533 |
12 | 181ba835 |
13 | c623b34 |
14 | 7dd63b3 |
15 | 544678b |
hex | 396cf29 |
60215081 has 4 divisors (see below), whose sum is σ = 62833152. Its totient is φ = 57597012.
The previous prime is 60215069. The next prime is 60215083. The reversal of 60215081 is 18051206.
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 60215081 - 26 = 60215017 is a prime.
It is a super-2 number, since 2×602150812 = 7251711959673122, which contains 22 as substring.
It is a Harshad number since it is a multiple of its sum of digits (23), and also a Moran number because the ratio is a prime number: 2618047 = 60215081 / (6 + 0 + 2 + 1 + 5 + 0 + 8 + 1).
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (60215083) 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, 1309001 + ... + 1309046.
It is an arithmetic number, because the mean of its divisors is an integer number (15708288).
Almost surely, 260215081 is an apocalyptic number.
It is an amenable number.
60215081 is a deficient number, since it is larger than the sum of its proper divisors (2618071).
60215081 is a wasteful number, since it uses less digits than its factorization.
60215081 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 2618070.
The product of its (nonzero) digits is 480, while the sum is 23.
The square root of 60215081 is about 7759.8376916015. The cubic root of 60215081 is about 391.9539916328.
Adding to 60215081 its reverse (18051206), we get a palindrome (78266287).
The spelling of 60215081 in words is "sixty million, two hundred fifteen thousand, eighty-one".
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