Base | Representation |
---|---|
bin | 110100000001110… |
… | …100000011110000 |
3 | 2020211111102210210 |
4 | 310001310003300 |
5 | 3241424444413 |
6 | 222341024120 |
7 | 30426306402 |
oct | 6401640360 |
9 | 2224442723 |
10 | 872890608 |
11 | 4087a66a7 |
12 | 2043b5040 |
13 | 10bac4325 |
14 | 83d00b72 |
15 | 519743c3 |
hex | 340740f0 |
872890608 has 20 divisors (see below), whose sum is σ = 2254967528. Its totient is φ = 290963520.
The previous prime is 872890589. The next prime is 872890651. The reversal of 872890608 is 806098278.
It is a happy number.
It is a Harshad number since it is a multiple of its sum of digits (48), and also a Moran number because the ratio is a prime number: 18185221 = 872890608 / (8 + 7 + 2 + 8 + 9 + 0 + 6 + 0 + 8).
It is a congruent number.
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (11) of ones.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9092563 + ... + 9092658.
Almost surely, 2872890608 is an apocalyptic number.
It is an amenable number.
872890608 is an abundant number, since it is smaller than the sum of its proper divisors (1382076920).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
872890608 is a wasteful number, since it uses less digits than its factorization.
872890608 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 18185232 (or 18185226 counting only the distinct ones).
The product of its (nonzero) digits is 387072, while the sum is 48.
The square root of 872890608 is about 29544.7221682655. The cubic root of 872890608 is about 955.6963783161.
The spelling of 872890608 in words is "eight hundred seventy-two million, eight hundred ninety thousand, six hundred eight".
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