Base | Representation |
---|---|
bin | 1010110011011101… |
… | …1010110101010100 |
3 | 21111010020212210102 |
4 | 2230313122311110 |
5 | 21414423141410 |
6 | 1155441313232 |
7 | 131604240524 |
oct | 25467326524 |
9 | 7433225712 |
10 | 2900208980 |
11 | 1259101a29 |
12 | 68b335818 |
13 | 372b14bb6 |
14 | 1d726b684 |
15 | 11e9312a5 |
hex | acddad54 |
2900208980 has 12 divisors (see below), whose sum is σ = 6090438900. Its totient is φ = 1160083584.
The previous prime is 2900208979. The next prime is 2900209009. The reversal of 2900208980 is 898020092.
It can be written as a sum of positive squares in 2 ways, for example, as 1426723984 + 1473484996 = 37772^2 + 38386^2 .
It is a super-2 number, since 2×29002089802 = 16822424255345280800, which contains 22 as substring.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 72505205 + ... + 72505244.
It is an arithmetic number, because the mean of its divisors is an integer number (507536575).
Almost surely, 22900208980 is an apocalyptic number.
2900208980 is a gapful number since it is divisible by the number (20) formed by its first and last digit.
It is an amenable number.
2900208980 is an abundant number, since it is smaller than the sum of its proper divisors (3190229920).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
2900208980 is a wasteful number, since it uses less digits than its factorization.
2900208980 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 145010458 (or 145010456 counting only the distinct ones).
The product of its (nonzero) digits is 20736, while the sum is 38.
The square root of 2900208980 is about 53853.5883669789. The cubic root of 2900208980 is about 1426.0774008595.
The spelling of 2900208980 in words is "two billion, nine hundred million, two hundred eight thousand, nine hundred eighty".
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