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20000333401 = 29937736037
BaseRepresentation
bin10010101000000111…
…001101111001011001
31220121212011012120221
4102220013031321121
5311430041132101
613104340320041
71305425012626
oct225007157131
956555135527
1020000333401
118533737564
123a620a3021
131b69793609
14d7a37134d
157c0cd4aa1
hex4a81cde59

20000333401 has 8 divisors (see below), whose sum is σ = 20712109320. Its totient is φ = 19290031488.

The previous prime is 20000333377. The next prime is 20000333407. The reversal of 20000333401 is 10433300002.

It can be written as a sum of positive squares in 4 ways, for example, as 783720025 + 19216613376 = 27995^2 + 138624^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 20000333401 - 27 = 20000333273 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20000333407) 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 7 ways as a sum of consecutive naturals, for example, 340846 + ... + 395191.

It is an arithmetic number, because the mean of its divisors is an integer number (2589013665).

Almost surely, 220000333401 is an apocalyptic number.

It is an amenable number.

20000333401 is a deficient number, since it is larger than the sum of its proper divisors (711775919).

20000333401 is an equidigital number, since it uses as much as digits as its factorization.

20000333401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 737003.

The product of its (nonzero) digits is 216, while the sum is 16.

Adding to 20000333401 its reverse (10433300002), we get a palindrome (30433633403).

The spelling of 20000333401 in words is "twenty billion, three hundred thirty-three thousand, four hundred one".

Divisors: 1 29 937 27173 736037 21345073 689666669 20000333401