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2010939840 = 263257137673
BaseRepresentation
bin111011111011100…
…1000000111000000
312012010221022212100
41313313020013000
513104300033330
6531313230400
7100555464240
oct16767100700
95163838770
102010939840
11942139958
12481562400
13260807940
14151105b20
15bb824060
hex77dc81c0

2010939840 has 336 divisors, whose sum is σ = 8514088128. Its totient is φ = 424230912.

The previous prime is 2010939829. The next prime is 2010939863. The reversal of 2010939840 is 489390102.

It is a tau number, because it is divible by the number of its divisors (336).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 2010939795 and 2010939804.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 258244 + ... + 265916.

It is an arithmetic number, because the mean of its divisors is an integer number (25339548).

Almost surely, 22010939840 is an apocalyptic number.

2010939840 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 2010939840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4257044064).

2010939840 is an abundant number, since it is smaller than the sum of its proper divisors (6503148288).

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

2010939840 is a wasteful number, since it uses less digits than its factorization.

2010939840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7716 (or 7703 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 36.

The square root of 2010939840 is about 44843.5038773734. The cubic root of 2010939840 is about 1262.2140964857.

The spelling of 2010939840 in words is "two billion, ten million, nine hundred thirty-nine thousand, eight hundred forty".