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5208021 = 327136359
BaseRepresentation
bin10011110111011111010101
3100210121001200
4103313133111
52313124041
6303343113
762160510
oct23673725
910717050
105208021
112a37955
1218b1a99
131104690
14997d77
156cd1b6
hex4f77d5

5208021 has 24 divisors (see below), whose sum is σ = 9260160. Its totient is φ = 2746656.

The previous prime is 5207981. The next prime is 5208041. The reversal of 5208021 is 1208025.

It is not a de Polignac number, because 5208021 - 210 = 5206997 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 5207985 and 5208003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5208041) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2361 + ... + 3998.

It is an arithmetic number, because the mean of its divisors is an integer number (385840).

Almost surely, 25208021 is an apocalyptic number.

It is an amenable number.

5208021 is a deficient number, since it is larger than the sum of its proper divisors (4052139).

5208021 is a wasteful number, since it uses less digits than its factorization.

5208021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6385 (or 6382 counting only the distinct ones).

The product of its (nonzero) digits is 160, while the sum is 18.

The square root of 5208021 is about 2282.1088931074. The cubic root of 5208021 is about 173.3368535610.

The spelling of 5208021 in words is "five million, two hundred eight thousand, twenty-one".

Divisors: 1 3 7 9 13 21 39 63 91 117 273 819 6359 19077 44513 57231 82667 133539 248001 400617 578669 744003 1736007 5208021