Base | Representation |
---|---|
bin | 1010011101101101… |
… | …1000011100010000 |
3 | 21020202120121122201 |
4 | 2213123120130100 |
5 | 21223044114242 |
6 | 1142422012544 |
7 | 126415606603 |
oct | 24733303420 |
9 | 7222517581 |
10 | 2808973072 |
11 | 1211657054 |
12 | 664877154 |
13 | 359c4c559 |
14 | 1c90bc33a |
15 | 11690d4b7 |
hex | a76d8710 |
2808973072 has 60 divisors (see below), whose sum is σ = 5989078480. Its totient is φ = 1272642624.
The previous prime is 2808973043. The next prime is 2808973081. The reversal of 2808973072 is 2703798082.
It is a super-2 number, since 2×28089730722 = 15780659438442234368, which contains 22 as substring.
It is a Harshad number since it is a multiple of its sum of digits (46).
It is an unprimeable number.
It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 152083 + ... + 169549.
Almost surely, 22808973072 is an apocalyptic number.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 2808973072, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2994539240).
2808973072 is an abundant number, since it is smaller than the sum of its proper divisors (3180105408).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
2808973072 is a wasteful number, since it uses less digits than its factorization.
2808973072 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 17540 (or 17511 counting only the distinct ones).
The product of its (nonzero) digits is 338688, while the sum is 46.
The square root of 2808973072 is about 52999.7459616553. The cubic root of 2808973072 is about 1410.9637580530.
The spelling of 2808973072 in words is "two billion, eight hundred eight million, nine hundred seventy-three thousand, seventy-two".
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