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20750382 = 2321152799
BaseRepresentation
bin100111100101…
…0000000101110
31110001020011200
41033022000232
520303003012
62020430330
7341242512
oct117120056
943036150
1020750382
1110793084
126b483a6
1343b6b43
142a82142
151c4d3dc
hex13ca02e

20750382 has 12 divisors (see below), whose sum is σ = 44959200. Its totient is φ = 6916788.

The previous prime is 20750371. The next prime is 20750407. The reversal of 20750382 is 28305702.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 576382 + ... + 576417.

It is an arithmetic number, because the mean of its divisors is an integer number (3746600).

Almost surely, 220750382 is an apocalyptic number.

20750382 is an abundant number, since it is smaller than the sum of its proper divisors (24208818).

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

20750382 is a wasteful number, since it uses less digits than its factorization.

20750382 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1152807 (or 1152804 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 27.

The square root of 20750382 is about 4555.2587193265. The cubic root of 20750382 is about 274.7949192758.

The spelling of 20750382 in words is "twenty million, seven hundred fifty thousand, three hundred eighty-two".

Divisors: 1 2 3 6 9 18 1152799 2305598 3458397 6916794 10375191 20750382