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20333043132 = 2231694420261
BaseRepresentation
bin10010111011111100…
…011001110110111100
31221111001012121112120
4102323330121312330
5313120224340012
613201343402540
71316605005063
oct227374316674
957431177476
1020333043132
118694522286
123b355b3450
131bc06a488c
14dac61b1da
157e010558c
hex4bbf19dbc

20333043132 has 12 divisors (see below), whose sum is σ = 47443767336. Its totient is φ = 6777681040.

The previous prime is 20333043089. The next prime is 20333043139. The reversal of 20333043132 is 23134033302.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20333043139) 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, 847210119 + ... + 847210142.

It is an arithmetic number, because the mean of its divisors is an integer number (3953647278).

Almost surely, 220333043132 is an apocalyptic number.

It is an amenable number.

20333043132 is an abundant number, since it is smaller than the sum of its proper divisors (27110724204).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20333043132 is a wasteful number, since it uses less digits than its factorization.

20333043132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1694420268 (or 1694420266 counting only the distinct ones).

The product of its (nonzero) digits is 3888, while the sum is 24.

Adding to 20333043132 its reverse (23134033302), we get a palindrome (43467076434).

The spelling of 20333043132 in words is "twenty billion, three hundred thirty-three million, forty-three thousand, one hundred thirty-two".

Divisors: 1 2 3 4 6 12 1694420261 3388840522 5083260783 6777681044 10166521566 20333043132