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20803482 = 2327414027
BaseRepresentation
bin100111101011…
…0111110011010
31110010221000100
41033112332122
520311202412
62021520230
7341553360
oct117267632
943127010
1020803482
1110819a67
126b73076
13440506b
142a97630
151c5dedc
hex13d6f9a

20803482 has 48 divisors (see below), whose sum is σ = 52782912. Its totient is φ = 5797440.

The previous prime is 20803417. The next prime is 20803487. The reversal of 20803482 is 28430802.

It is not an unprimeable number, because it can be changed into a prime (20803487) 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, 3153 + ... + 7179.

It is an arithmetic number, because the mean of its divisors is an integer number (1099644).

Almost surely, 220803482 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20803482, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (26391456).

20803482 is an abundant number, since it is smaller than the sum of its proper divisors (31979430).

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

20803482 is a wasteful number, since it uses less digits than its factorization.

20803482 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4083 (or 4080 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 27.

The square root of 20803482 is about 4561.0834239246. The cubic root of 20803482 is about 275.0291186797.

The spelling of 20803482 in words is "twenty million, eight hundred three thousand, four hundred eighty-two".

Divisors: 1 2 3 6 7 9 14 18 21 41 42 63 82 123 126 246 287 369 574 738 861 1722 2583 4027 5166 8054 12081 24162 28189 36243 56378 72486 84567 165107 169134 253701 330214 495321 507402 990642 1155749 1485963 2311498 2971926 3467247 6934494 10401741 20803482