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20014430245 = 54002886049
BaseRepresentation
bin10010101000111100…
…111111100000100101
31220122211200101211021
4102220330333200211
5311442143231440
613110002411141
71305655564405
oct225074774045
956584611737
1020014430245
118540695747
123a66960ab1
131b6c68ab44
14d7c1a0805
157c216b84a
hex4a8f3f825

20014430245 has 4 divisors (see below), whose sum is σ = 24017316300. Its totient is φ = 16011544192.

The previous prime is 20014430231. The next prime is 20014430257. The reversal of 20014430245 is 54203441002.

It is a happy number.

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

It can be written as a sum of positive squares in 2 ways, for example, as 15956995041 + 4057435204 = 126321^2 + 63698^2 .

It is a cyclic number.

It is not a de Polignac number, because 20014430245 - 211 = 20014428197 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2001443020 + ... + 2001443029.

It is an arithmetic number, because the mean of its divisors is an integer number (6004329075).

Almost surely, 220014430245 is an apocalyptic number.

It is an amenable number.

20014430245 is a deficient number, since it is larger than the sum of its proper divisors (4002886055).

20014430245 is an equidigital number, since it uses as much as digits as its factorization.

20014430245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4002886054.

The product of its (nonzero) digits is 3840, while the sum is 25.

Adding to 20014430245 its reverse (54203441002), we get a palindrome (74217871247).

The spelling of 20014430245 in words is "twenty billion, fourteen million, four hundred thirty thousand, two hundred forty-five".

Divisors: 1 5 4002886049 20014430245