Base | Representation |
---|---|
bin | 10010100101011101010101 |
3 | 100011112011020 |
4 | 102211131111 |
5 | 2221401041 |
6 | 252231353 |
7 | 56261100 |
oct | 22453525 |
9 | 10145136 |
10 | 4872021 |
11 | 2828470 |
12 | 176b559 |
13 | 101776b |
14 | 90b737 |
15 | 663866 |
hex | 4a5755 |
4872021 has 48 divisors (see below), whose sum is σ = 8667648. Its totient is φ = 2402400.
The previous prime is 4872001. The next prime is 4872041. The reversal of 4872021 is 1202784.
It is an interprime number because it is at equal distance from previous prime (4872001) and next prime (4872041).
It is not a de Polignac number, because 4872021 - 26 = 4871957 is a prime.
It is a junction number, because it is equal to n+sod(n) for n = 4871982 and 4872000.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (4872001) by changing a digit.
It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 37126 + ... + 37256.
It is an arithmetic number, because the mean of its divisors is an integer number (180576).
Almost surely, 24872021 is an apocalyptic number.
It is an amenable number.
4872021 is a deficient number, since it is larger than the sum of its proper divisors (3795627).
4872021 is a wasteful number, since it uses less digits than its factorization.
4872021 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 182 (or 175 counting only the distinct ones).
The product of its (nonzero) digits is 896, while the sum is 24.
The square root of 4872021 is about 2207.2655028338. The cubic root of 4872021 is about 169.5260269289.
The spelling of 4872021 in words is "four million, eight hundred seventy-two thousand, twenty-one".
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