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20300483 = 72900069
BaseRepresentation
bin100110101110…
…0001011000011
31102012101000202
41031130023003
520144103413
62003035415
7334360040
oct115341303
942171022
1020300483
1110506065
12696bb6b
13428a128
1429a61c7
151baee58
hex135c2c3

20300483 has 4 divisors (see below), whose sum is σ = 23200560. Its totient is φ = 17400408.

The previous prime is 20300479. The next prime is 20300491. The reversal of 20300483 is 38400302.

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 20300483 - 22 = 20300479 is a prime.

It is a super-2 number, since 2×203004832 = 824219220066578, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20300083) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1450028 + ... + 1450041.

It is an arithmetic number, because the mean of its divisors is an integer number (5800140).

Almost surely, 220300483 is an apocalyptic number.

20300483 is a deficient number, since it is larger than the sum of its proper divisors (2900077).

20300483 is an equidigital number, since it uses as much as digits as its factorization.

20300483 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2900076.

The product of its (nonzero) digits is 576, while the sum is 20.

The square root of 20300483 is about 4505.6057306427. The cubic root of 20300483 is about 272.7944039223.

Adding to 20300483 its reverse (38400302), we get a palindrome (58700785).

The spelling of 20300483 in words is "twenty million, three hundred thousand, four hundred eighty-three".

Divisors: 1 7 2900069 20300483