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20048383 = 79253777
BaseRepresentation
bin100110001111…
…0100111111111
31101201120012201
41030132213333
520113022013
61553412331
7332260045
oct114364777
941646181
1020048383
1110353713
12686a0a7
1341cc464
14293c395
151b603dd
hex131e9ff

20048383 has 4 divisors (see below), whose sum is σ = 20302240. Its totient is φ = 19794528.

The previous prime is 20048359. The next prime is 20048411. The reversal of 20048383 is 38384002.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 20048383 - 29 = 20047871 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20048683) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 126810 + ... + 126967.

It is an arithmetic number, because the mean of its divisors is an integer number (5075560).

Almost surely, 220048383 is an apocalyptic number.

20048383 is a deficient number, since it is larger than the sum of its proper divisors (253857).

20048383 is an equidigital number, since it uses as much as digits as its factorization.

20048383 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 253856.

The product of its (nonzero) digits is 4608, while the sum is 28.

The square root of 20048383 is about 4477.5420712708. The cubic root of 20048383 is about 271.6604715028.

The spelling of 20048383 in words is "twenty million, forty-eight thousand, three hundred eighty-three".

Divisors: 1 79 253777 20048383