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2071203840 = 21232517661
BaseRepresentation
bin111101101110100…
…0001000000000000
312100100100001112100
41323131001000000
513220212010330
6541305030400
7102216641106
oct17335010000
95310301470
102071203840
11973160112
12499785400
13270147b04
14159111c76
15c1c7a060
hex7b741000

2071203840 has 312 divisors, whose sum is σ = 7613108568. Its totient is φ = 519045120.

The previous prime is 2071203803. The next prime is 2071203859. The reversal of 2071203840 is 483021702.

It can be written as a sum of positive squares in 4 ways, for example, as 712249344 + 1358954496 = 26688^2 + 36864^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3133110 + ... + 3133770.

It is an arithmetic number, because the mean of its divisors is an integer number (24400989).

Almost surely, 22071203840 is an apocalyptic number.

2071203840 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 2071203840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3806554284).

2071203840 is an abundant number, since it is smaller than the sum of its proper divisors (5541904728).

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

2071203840 is a wasteful number, since it uses less digits than its factorization.

2071203840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 713 (or 688 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 27.

The square root of 2071203840 is about 45510.4805511873. The cubic root of 2071203840 is about 1274.6989092953.

The spelling of 2071203840 in words is "two billion, seventy-one million, two hundred three thousand, eight hundred forty".