Base | Representation |
---|---|
bin | 1001100101011… |
… | …10110100010110 |
3 | 12121022010210210 |
4 | 10302232310112 |
5 | 131041022310 |
6 | 11551230250 |
7 | 1664312106 |
oct | 462566426 |
9 | 177263723 |
10 | 80407830 |
11 | 4142a658 |
12 | 22b18386 |
13 | 13873bc9 |
14 | a971206 |
15 | 70d4820 |
hex | 4caed16 |
80407830 has 16 divisors (see below), whose sum is σ = 192978864. Its totient is φ = 21442080.
The previous prime is 80407819. The next prime is 80407843. The reversal of 80407830 is 3870408.
It is a Harshad number since it is a multiple of its sum of digits (30), and also a Moran number because the ratio is a prime number: 2680261 = 80407830 / (8 + 0 + 4 + 0 + 7 + 8 + 3 + 0).
It is a congruent number.
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, 1340101 + ... + 1340160.
It is an arithmetic number, because the mean of its divisors is an integer number (12061179).
Almost surely, 280407830 is an apocalyptic number.
80407830 is an abundant number, since it is smaller than the sum of its proper divisors (112571034).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
80407830 is a wasteful number, since it uses less digits than its factorization.
80407830 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 2680271.
The product of its (nonzero) digits is 5376, while the sum is 30.
The square root of 80407830 is about 8967.0413180714. The cubic root of 80407830 is about 431.6178998756.
The spelling of 80407830 in words is "eighty million, four hundred seven thousand, eight hundred thirty".
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