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20203004432 = 241397129829
BaseRepresentation
bin10010110100001100…
…010110001000010000
31221010222111221222102
4102310030112020100
5312333432120212
613140420255532
71313435463362
oct226414261020
957128457872
1020203004432
118628084286
123ab9b415a8
131b9c7745c0
14d9924ad32
157d39ba5c2
hex4b4316210

20203004432 has 20 divisors (see below), whose sum is σ = 42154346220. Its totient is φ = 9324463488.

The previous prime is 20203004417. The next prime is 20203004441. The reversal of 20203004432 is 23440030202.

It can be written as a sum of positive squares in 2 ways, for example, as 11973611776 + 8229392656 = 109424^2 + 90716^2 .

It is a super-2 number, since 2×202030044322 (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 48564707 + ... + 48565122.

It is an arithmetic number, because the mean of its divisors is an integer number (2107717311).

Almost surely, 220203004432 is an apocalyptic number.

It is an amenable number.

20203004432 is an abundant number, since it is smaller than the sum of its proper divisors (21951341788).

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

20203004432 is a wasteful number, since it uses less digits than its factorization.

20203004432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 97129850 (or 97129844 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 20.

Adding to 20203004432 its reverse (23440030202), we get a palindrome (43643034634).

The spelling of 20203004432 in words is "twenty billion, two hundred three million, four thousand, four hundred thirty-two".

Divisors: 1 2 4 8 13 16 26 52 104 208 97129829 194259658 388519316 777038632 1262687777 1554077264 2525375554 5050751108 10101502216 20203004432