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2020210140 = 2235132590013
BaseRepresentation
bin111100001101001…
…1111010111011100
312012210101022022210
41320122133113130
513114133211030
6532244040420
7101030334324
oct17032372734
95183338283
102020210140
119473a0863
12484693110
13262702320
1415243a284
15bc555bb0
hex7869f5dc

2020210140 has 48 divisors (see below), whose sum is σ = 6091712928. Its totient is φ = 497282304.

The previous prime is 2020210111. The next prime is 2020210141. The reversal of 2020210140 is 410120202.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2020210141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1294227 + ... + 1295786.

It is an arithmetic number, because the mean of its divisors is an integer number (126910686).

Almost surely, 22020210140 is an apocalyptic number.

2020210140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2020210140 is an abundant number, since it is smaller than the sum of its proper divisors (4071502788).

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

2020210140 is a wasteful number, since it uses less digits than its factorization.

2020210140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2590038 (or 2590036 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 12.

The square root of 2020210140 is about 44946.7478245089. The cubic root of 2020210140 is about 1264.1506982305.

Adding to 2020210140 its reverse (410120202), we get a palindrome (2430330342).

The spelling of 2020210140 in words is "two billion, twenty million, two hundred ten thousand, one hundred forty".

Divisors: 1 2 3 4 5 6 10 12 13 15 20 26 30 39 52 60 65 78 130 156 195 260 390 780 2590013 5180026 7770039 10360052 12950065 15540078 25900130 31080156 33670169 38850195 51800260 67340338 77700390 101010507 134680676 155400780 168350845 202021014 336701690 404042028 505052535 673403380 1010105070 2020210140