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20333300231 = 671997151969
BaseRepresentation
bin10010111011111101…
…011000101000000111
31221111001200200012202
4102323331120220013
5313120311101411
613201353105115
71316610125456
oct227375305007
957431620182
1020333300231
118694688462
123b356b819b
131bc07648ca
14dac686b9d
157e015683b
hex4bbf58a07

20333300231 has 8 divisors (see below), whose sum is σ = 20647252080. Its totient is φ = 20019656448.

The previous prime is 20333300227. The next prime is 20333300261. The reversal of 20333300231 is 13200333302.

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 20333300231 - 22 = 20333300227 is a prime.

It is a super-2 number, since 2×203333002312 (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20333300261) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 57815 + ... + 209783.

It is an arithmetic number, because the mean of its divisors is an integer number (2580906510).

Almost surely, 220333300231 is an apocalyptic number.

20333300231 is a deficient number, since it is larger than the sum of its proper divisors (313951849).

20333300231 is a wasteful number, since it uses less digits than its factorization.

20333300231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 154033.

The product of its (nonzero) digits is 972, while the sum is 20.

Adding to 20333300231 its reverse (13200333302), we get a palindrome (33533633533).

The spelling of 20333300231 in words is "twenty billion, three hundred thirty-three million, three hundred thousand, two hundred thirty-one".

Divisors: 1 67 1997 133799 151969 10181923 303482093 20333300231