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20323032424 = 233797669049
BaseRepresentation
bin10010111011010110…
…001101110101101000
31221110100101000102121
4102323112031311220
5313110144014144
613200345041024
71316423632252
oct227326156550
957410330377
1020323032424
118689905072
123b32186174
131bbb5ab196
14dab172cd2
157de2c9384
hex4bb58dd68

20323032424 has 16 divisors (see below), whose sum is σ = 38115778500. Its totient is φ = 10158824832.

The previous prime is 20323032419. The next prime is 20323032427. The reversal of 20323032424 is 42423032302.

It can be written as a sum of positive squares in 2 ways, for example, as 17165716324 + 3157316100 = 131018^2 + 56190^2 .

It is not an unprimeable number, because it can be changed into a prime (20323032427) 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 3 ways as a sum of consecutive naturals, for example, 304149 + ... + 364900.

Almost surely, 220323032424 is an apocalyptic number.

It is an amenable number.

20323032424 is a deficient number, since it is larger than the sum of its proper divisors (17792746076).

20323032424 is a wasteful number, since it uses less digits than its factorization.

20323032424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 672852 (or 672848 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 25.

Adding to 20323032424 its reverse (42423032302), we get a palindrome (62746064726).

The spelling of 20323032424 in words is "twenty billion, three hundred twenty-three million, thirty-two thousand, four hundred twenty-four".

Divisors: 1 2 4 8 3797 7594 15188 30376 669049 1338098 2676196 5352392 2540379053 5080758106 10161516212 20323032424