| Base | Representation |
|---|---|
| bin | 1011001000010100… |
| … | …1101011001000100 |
| 3 | 21201012220101122200 |
| 4 | 2302011031121010 |
| 5 | 22104323210040 |
| 6 | 1212244554500 |
| 7 | 134016054561 |
| oct | 26205153104 |
| 9 | 7635811580 |
| 10 | 2987710020 |
| 11 | 12a3536839 |
| 12 | 6b46b2a30 |
| 13 | 387ca0569 |
| 14 | 204b27868 |
| 15 | 127467630 |
| hex | b214d644 |
2987710020 has 72 divisors (see below), whose sum is σ = 9095126040. Its totient is φ = 793873920.
The previous prime is 2987710013. The next prime is 2987710021. The reversal of 2987710020 is 200177892.
It can be written as a sum of positive squares in 4 ways, for example, as 806446404 + 2181263616 = 28398^2 + 46704^2 .
It is a super-2 number, since 2×29877100202 = 17852822327216800800, which contains 22 as substring.
It is a Harshad number since it is a multiple of its sum of digits (36).
It is not an unprimeable number, because it can be changed into a prime (2987710021) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (13) of ones.
It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 21046 + ... + 80114.
It is an arithmetic number, because the mean of its divisors is an integer number (126321195).
Almost surely, 22987710020 is an apocalyptic number.
2987710020 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 2987710020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4547563020).
2987710020 is an abundant number, since it is smaller than the sum of its proper divisors (6107416020).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
2987710020 is a wasteful number, since it uses less digits than its factorization.
2987710020 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 59365 (or 59360 counting only the distinct ones).
The product of its (nonzero) digits is 14112, while the sum is 36.
The square root of 2987710020 is about 54659.9489571661. The cubic root of 2987710020 is about 1440.2774060470.
The spelling of 2987710020 in words is "two billion, nine hundred eighty-seven million, seven hundred ten thousand, twenty".
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