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5216820 = 2235712421
BaseRepresentation
bin10011111001101000110100
3100211001010120
4103321220310
52313414240
6303451540
762225250
oct23715064
910731116
105216820
112a43524
1218b6bb0
13110869b
1499b260
156d0ad0
hex4f9a34

5216820 has 48 divisors (see below), whose sum is σ = 16695168. Its totient is φ = 1192320.

The previous prime is 5216801. The next prime is 5216833. The reversal of 5216820 is 286125.

5216820 is digitally balanced in base 4 and base 8, because in such bases it contains all the possibile digits an equal number of times.

5216820 is strictly pandigital in base 8.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5791 + ... + 6630.

It is an arithmetic number, because the mean of its divisors is an integer number (347816).

Almost surely, 25216820 is an apocalyptic number.

It is an amenable number.

5216820 is an abundant number, since it is smaller than the sum of its proper divisors (11478348).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

5216820 is a wasteful number, since it uses less digits than its factorization.

5216820 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12440 (or 12438 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 24.

The square root of 5216820 is about 2284.0359016443. The cubic root of 5216820 is about 173.4344167133.

The spelling of 5216820 in words is "five million, two hundred sixteen thousand, eight hundred twenty".

Divisors: 1 2 3 4 5 6 7 10 12 14 15 20 21 28 30 35 42 60 70 84 105 140 210 420 12421 24842 37263 49684 62105 74526 86947 124210 149052 173894 186315 248420 260841 347788 372630 434735 521682 745260 869470 1043364 1304205 1738940 2608410 5216820