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2020902840 = 23325111792851
BaseRepresentation
bin111100001110100…
…1000011110111000
312012211200111112100
41320131020132320
513114322342330
6532310543400
7101036251005
oct17035103670
95184614470
102020902840
11947824240
12484967b60
132628b56c8
1415257a8ac
15bc641060
hex787487b8

2020902840 has 192 divisors, whose sum is σ = 7207574400. Its totient is φ = 487008000.

The previous prime is 2020902827. The next prime is 2020902859. The reversal of 2020902840 is 482090202.

2020902840 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

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, 707415 + ... + 710265.

It is an arithmetic number, because the mean of its divisors is an integer number (37539450).

Almost surely, 22020902840 is an apocalyptic number.

2020902840 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 2020902840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3603787200).

2020902840 is an abundant number, since it is smaller than the sum of its proper divisors (5186671560).

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

2020902840 is a wasteful number, since it uses less digits than its factorization.

2020902840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3058 (or 3051 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 27.

The square root of 2020902840 is about 44954.4529496245. The cubic root of 2020902840 is about 1264.2951678750.

The spelling of 2020902840 in words is "two billion, twenty million, nine hundred two thousand, eight hundred forty".