Base | Representation |
---|---|
bin | 10011111000101100110101 |
3 | 100210211212101 |
4 | 103320230311 |
5 | 2313303411 |
6 | 303422101 |
7 | 62211124 |
oct | 23705465 |
9 | 10724771 |
10 | 5212981 |
11 | 2a40654 |
12 | 18b4931 |
13 | 1106a07 |
14 | 999abb |
15 | 6ce8c1 |
hex | 4f8b35 |
5212981 has 8 divisors (see below), whose sum is σ = 5320224. Its totient is φ = 5106960.
The previous prime is 5212979. The next prime is 5212993. The reversal of 5212981 is 1892125.
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 5212981 - 21 = 5212979 is a prime.
It is a super-2 number, since 2×52129812 = 54350341812722, which contains 22 as substring.
It is an alternating number because its digits alternate between odd and even.
It is a Duffinian number.
It is a plaindrome in base 14.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (5212901) 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, 14850 + ... + 15196.
It is an arithmetic number, because the mean of its divisors is an integer number (665028).
Almost surely, 25212981 is an apocalyptic number.
It is an amenable number.
5212981 is a deficient number, since it is larger than the sum of its proper divisors (107243).
5212981 is a wasteful number, since it uses less digits than its factorization.
5212981 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 611.
The product of its digits is 1440, while the sum is 28.
The square root of 5212981 is about 2283.1953486288. The cubic root of 5212981 is about 173.3918634520.
The spelling of 5212981 in words is "five million, two hundred twelve thousand, nine hundred eighty-one".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.081 sec. • engine limits •