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20013002232 = 2335503151531
BaseRepresentation
bin10010101000110111…
…100010110111111000
31220122201222211221220
4102220313202313320
5311441312032412
613105512032040
71305640466166
oct225067426770
956581884856
1020013002232
11853a8aa873
123a66392620
131b6c2aab72
14d7bd0c236
157c1e8868c
hex4a8de2df8

20013002232 has 32 divisors (see below), whose sum is σ = 50041927680. Its totient is φ = 6669744480.

The previous prime is 20013002231. The next prime is 20013002249. The reversal of 20013002232 is 23220031002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20013002231) 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, 56307 + ... + 207837.

It is an arithmetic number, because the mean of its divisors is an integer number (1563810240).

Almost surely, 220013002232 is an apocalyptic number.

It is an amenable number.

20013002232 is an abundant number, since it is smaller than the sum of its proper divisors (30028925448).

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

20013002232 is a wasteful number, since it uses less digits than its factorization.

20013002232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 157043 (or 157039 counting only the distinct ones).

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

Adding to 20013002232 its reverse (23220031002), we get a palindrome (43233033234).

The spelling of 20013002232 in words is "twenty billion, thirteen million, two thousand, two hundred thirty-two".

Divisors: 1 2 3 4 6 8 12 24 5503 11006 16509 22012 33018 44024 66036 132072 151531 303062 454593 606124 909186 1212248 1818372 3636744 833875093 1667750186 2501625279 3335500372 5003250558 6671000744 10006501116 20013002232