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20767482 = 233232727
BaseRepresentation
bin100111100111…
…0001011111010
31110002002122000
41033032023322
520304024412
62021041430
7341343411
oct117161372
943062560
1020767482
11107a4a0a
126b56276
1343c1868
142a88478
151c534dc
hex13ce2fa

20767482 has 48 divisors (see below), whose sum is σ = 48310080. Its totient is φ = 6612408.

The previous prime is 20767477. The next prime is 20767501. The reversal of 20767482 is 28476702.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 28203 + ... + 28929.

It is an arithmetic number, because the mean of its divisors is an integer number (1006460).

Almost surely, 220767482 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20767482, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (24155040).

20767482 is an abundant number, since it is smaller than the sum of its proper divisors (27542598).

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

20767482 is a wasteful number, since it uses less digits than its factorization.

20767482 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 784 (or 755 counting only the distinct ones).

The product of its (nonzero) digits is 37632, while the sum is 36.

The square root of 20767482 is about 4557.1352843645. The cubic root of 20767482 is about 274.8703829938.

The spelling of 20767482 in words is "twenty million, seven hundred sixty-seven thousand, four hundred eighty-two".

Divisors: 1 2 3 6 9 18 23 27 46 54 69 138 207 414 529 621 727 1058 1242 1454 1587 2181 3174 4362 4761 6543 9522 13086 14283 16721 19629 28566 33442 39258 50163 100326 150489 300978 384583 451467 769166 902934 1153749 2307498 3461247 6922494 10383741 20767482