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20003120232 = 233833463343
BaseRepresentation
bin10010101000010001…
…110110010001101000
31220122001101210101220
4102220101312101220
5311431244321412
613104520142040
71305460500534
oct225021662150
956561353356
1020003120232
118535270327
123a63007920
131b6a22ac24
14d7a898bc4
157c118568c
hex4a8476468

20003120232 has 16 divisors (see below), whose sum is σ = 50007800640. Its totient is φ = 6667706736.

The previous prime is 20003120231. The next prime is 20003120237. The reversal of 20003120232 is 23202130002.

It is not an unprimeable number, because it can be changed into a prime (20003120231) 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, 416731648 + ... + 416731695.

It is an arithmetic number, because the mean of its divisors is an integer number (3125487540).

Almost surely, 220003120232 is an apocalyptic number.

It is an amenable number.

20003120232 is an abundant number, since it is smaller than the sum of its proper divisors (30004680408).

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

20003120232 is a wasteful number, since it uses less digits than its factorization.

20003120232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 833463352 (or 833463348 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 15.

Adding to 20003120232 its reverse (23202130002), we get a palindrome (43205250234).

The spelling of 20003120232 in words is "twenty billion, three million, one hundred twenty thousand, two hundred thirty-two".

Divisors: 1 2 3 4 6 8 12 24 833463343 1666926686 2500390029 3333853372 5000780058 6667706744 10001560116 20003120232