Base | Representation |
---|---|
bin | 1001001111001101111111 |
3 | 11120000212001 |
4 | 21033031333 |
5 | 1104443011 |
6 | 123523131 |
7 | 26404102 |
oct | 11171577 |
9 | 4500761 |
10 | 2421631 |
11 | 1404453 |
12 | 9894a7 |
13 | 66a324 |
14 | 470739 |
15 | 32c7c1 |
hex | 24f37f |
2421631 has 8 divisors (see below), whose sum is σ = 2499200. Its totient is φ = 2345112.
The previous prime is 2421593. The next prime is 2421641. The reversal of 2421631 is 1361242.
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 2421631 - 29 = 2421119 is a prime.
It is a super-2 number, since 2×24216312 = 11728593400322, which contains 22 as substring.
It is a Duffinian number.
2421631 is a lucky number.
It is a junction number, because it is equal to n+sod(n) for n = 2421599 and 2421608.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (2421641) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8416 + ... + 8698.
It is an arithmetic number, because the mean of its divisors is an integer number (312400).
22421631 is an apocalyptic number.
2421631 is a deficient number, since it is larger than the sum of its proper divisors (77569).
2421631 is a wasteful number, since it uses less digits than its factorization.
2421631 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 525.
The product of its digits is 288, while the sum is 19.
The square root of 2421631 is about 1556.1590535675. The cubic root of 2421631 is about 134.2876238169.
Adding to 2421631 its reverse (1361242), we get a palindrome (3782873).
The spelling of 2421631 in words is "two million, four hundred twenty-one thousand, six hundred thirty-one".
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