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20301431441 = 40934960037
BaseRepresentation
bin10010111010000011…
…110100001010010001
31221101211201120110012
4102322003310022101
5313034131301231
613154254044305
71316042214524
oct227203641221
957354646405
1020301431441
1186786a0a15
123b26aa9695
131bb6c87135
14da834cbbb
157dc45de2b
hex4ba0f4291

20301431441 has 4 divisors (see below), whose sum is σ = 20306395572. Its totient is φ = 20296467312.

The previous prime is 20301431377. The next prime is 20301431453. The reversal of 20301431441 is 14413410302.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 14413410302 = 27206705151.

It can be written as a sum of positive squares in 2 ways, for example, as 4243219600 + 16058211841 = 65140^2 + 126721^2 .

It is a cyclic number.

It is not a de Polignac number, because 20301431441 - 26 = 20301431377 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20301431041) 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, 2475926 + ... + 2484111.

It is an arithmetic number, because the mean of its divisors is an integer number (5076598893).

Almost surely, 220301431441 is an apocalyptic number.

It is an amenable number.

20301431441 is a deficient number, since it is larger than the sum of its proper divisors (4964131).

20301431441 is an equidigital number, since it uses as much as digits as its factorization.

20301431441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4964130.

The product of its (nonzero) digits is 1152, while the sum is 23.

Adding to 20301431441 its reverse (14413410302), we get a palindrome (34714841743).

The spelling of 20301431441 in words is "twenty billion, three hundred one million, four hundred thirty-one thousand, four hundred forty-one".

Divisors: 1 4093 4960037 20301431441