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20825199260 = 2251041259963
BaseRepresentation
bin10011011001010001…
…110101001010011100
31222202100021201211022
4103121101311022130
5320122222334020
613322244143312
71335032162435
oct233121651234
958670251738
1020825199260
118917311488
124052397b38
131c6b641618
141017b3048c
1581d41e625
hex4d947529c

20825199260 has 12 divisors (see below), whose sum is σ = 43732918488. Its totient is φ = 8330079696.

The previous prime is 20825199259. The next prime is 20825199271. The reversal of 20825199260 is 6299152802.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 520629962 + ... + 520630001.

It is an arithmetic number, because the mean of its divisors is an integer number (3644409874).

Almost surely, 220825199260 is an apocalyptic number.

20825199260 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20825199260 is an abundant number, since it is smaller than the sum of its proper divisors (22907719228).

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

20825199260 is a wasteful number, since it uses less digits than its factorization.

20825199260 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1041259972 (or 1041259970 counting only the distinct ones).

The product of its (nonzero) digits is 155520, while the sum is 44.

The spelling of 20825199260 in words is "twenty billion, eight hundred twenty-five million, one hundred ninety-nine thousand, two hundred sixty".

Divisors: 1 2 4 5 10 20 1041259963 2082519926 4165039852 5206299815 10412599630 20825199260