Base | Representation |
---|---|
bin | 100010001110… |
… | …100010000100 |
3 | 121212211211212 |
4 | 202032202010 |
5 | 4244104140 |
6 | 520150552 |
7 | 136156442 |
oct | 42164204 |
9 | 17784755 |
10 | 8972420 |
11 | 5079126 |
12 | 3008458 |
13 | 1b21c32 |
14 | 1297b92 |
15 | bc3765 |
hex | 88e884 |
8972420 has 24 divisors (see below), whose sum is σ = 18973248. Its totient is φ = 3564000.
The previous prime is 8972407. The next prime is 8972459. The reversal of 8972420 is 242798.
It is an unprimeable number.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1535 + ... + 4505.
It is an arithmetic number, because the mean of its divisors is an integer number (790552).
Almost surely, 28972420 is an apocalyptic number.
It is an amenable number.
8972420 is an abundant number, since it is smaller than the sum of its proper divisors (10000828).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
8972420 is a wasteful number, since it uses less digits than its factorization.
8972420 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 3131 (or 3129 counting only the distinct ones).
The product of its (nonzero) digits is 8064, while the sum is 32.
The square root of 8972420 is about 2995.3998063698. The cubic root of 8972420 is about 207.7956881834.
The spelling of 8972420 in words is "eight million, nine hundred seventy-two thousand, four hundred twenty".
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