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20225512132 = 227800990191
BaseRepresentation
bin10010110101100010…
…001101001011000100
31221012112212110201221
4102311202031023010
5312410212342012
613142542530124
71314131005450
oct226542151304
957175773657
1020225512132
118639857691
123b05596944
131ba4325277
14d9c229660
157d5964507
hex4b588d2c4

20225512132 has 24 divisors (see below), whose sum is σ = 40456523520. Its totient is φ = 8666898240.

The previous prime is 20225512067. The next prime is 20225512133. The reversal of 20225512132 is 23121552202.

It is a junction number, because it is equal to n+sod(n) for n = 20225512097 and 20225512106.

It is not an unprimeable number, because it can be changed into a prime (20225512133) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 179157 + ... + 269347.

It is an arithmetic number, because the mean of its divisors is an integer number (1685688480).

Almost surely, 220225512132 is an apocalyptic number.

It is an amenable number.

20225512132 is an abundant number, since it is smaller than the sum of its proper divisors (20231011388).

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

20225512132 is a wasteful number, since it uses less digits than its factorization.

20225512132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 98211 (or 98209 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 25.

The spelling of 20225512132 in words is "twenty billion, two hundred twenty-five million, five hundred twelve thousand, one hundred thirty-two".

Divisors: 1 2 4 7 14 28 8009 16018 32036 56063 90191 112126 180382 224252 360764 631337 1262674 2525348 722339719 1444679438 2889358876 5056378033 10112756066 20225512132