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20248368 = 243728609
BaseRepresentation
bin100110100111…
…1011100110000
31102002201112120
41031033130300
520140421433
62001554240
7334052100
oct115173460
942081476
1020248368
111047a998
126945980
13426c4aa
142991200
151b9e7b3
hex134f730

20248368 has 60 divisors (see below), whose sum is σ = 60855480. Its totient is φ = 5784576.

The previous prime is 20248337. The next prime is 20248381. The reversal of 20248368 is 86384202.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1953 + ... + 6656.

It is an arithmetic number, because the mean of its divisors is an integer number (1014258).

Almost surely, 220248368 is an apocalyptic number.

20248368 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

20248368 is an abundant number, since it is smaller than the sum of its proper divisors (40607112).

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

20248368 is a wasteful number, since it uses less digits than its factorization.

20248368 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8634 (or 8621 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 33.

The square root of 20248368 is about 4499.8186630130. The cubic root of 20248368 is about 272.5607664051.

The spelling of 20248368 in words is "twenty million, two hundred forty-eight thousand, three hundred sixty-eight".

Divisors: 1 2 3 4 6 7 8 12 14 16 21 24 28 42 48 49 56 84 98 112 147 168 196 294 336 392 588 784 1176 2352 8609 17218 25827 34436 51654 60263 68872 103308 120526 137744 180789 206616 241052 361578 413232 421841 482104 723156 843682 964208 1265523 1446312 1687364 2531046 2892624 3374728 5062092 6749456 10124184 20248368