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26924982420 = 223573114913879
BaseRepresentation
bin11001000100110110…
…101010000010010100
32120111110002211021010
4121010312222002110
5420120243414140
620211423452220
71642140401010
oct310466520224
976443084233
1026924982420
11104674a5896
125275157070
1327012a627b
141435cb5540
15a78bb7880
hex644daa094

26924982420 has 192 divisors, whose sum is σ = 89542656000. Its totient is φ = 5915358720.

The previous prime is 26924982379. The next prime is 26924982421. The reversal of 26924982420 is 2428942962.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 26924982420.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26924982421) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1933041 + ... + 1946919.

It is an arithmetic number, because the mean of its divisors is an integer number (466368000).

Almost surely, 226924982420 is an apocalyptic number.

26924982420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 26924982420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (44771328000).

26924982420 is an abundant number, since it is smaller than the sum of its proper divisors (62617673580).

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

26924982420 is a wasteful number, since it uses less digits than its factorization.

26924982420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14078 (or 14076 counting only the distinct ones).

The product of its (nonzero) digits is 995328, while the sum is 48.

The spelling of 26924982420 in words is "twenty-six billion, nine hundred twenty-four million, nine hundred eighty-two thousand, four hundred twenty".