Base | Representation |
---|---|
bin | 1001100111001… |
… | …01001111110010 |
3 | 12121201110121211 |
4 | 10303211033302 |
5 | 131120141040 |
6 | 12000110334 |
7 | 1666231063 |
oct | 463451762 |
9 | 177643554 |
10 | 80630770 |
11 | 41572100 |
12 | 230053aa |
13 | 1392151c |
14 | a9cc56a |
15 | 712a8ea |
hex | 4ce53f2 |
80630770 has 48 divisors (see below), whose sum is σ = 163931544. Its totient is φ = 28512000.
The previous prime is 80630741. The next prime is 80630789. The reversal of 80630770 is 7703608.
It can be written as a sum of positive squares in 4 ways, for example, as 65723449 + 14907321 = 8107^2 + 3861^2 .
It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors.
It is an unprimeable number.
It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 43870 + ... + 45670.
Almost surely, 280630770 is an apocalyptic number.
80630770 is an abundant number, since it is smaller than the sum of its proper divisors (83300774).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
80630770 is a wasteful number, since it uses less digits than its factorization.
80630770 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 1867 (or 1856 counting only the distinct ones).
The product of its (nonzero) digits is 7056, while the sum is 31.
The square root of 80630770 is about 8979.4637924544. The cubic root of 80630770 is about 432.0164352744.
The spelling of 80630770 in words is "eighty million, six hundred thirty thousand, seven hundred seventy".
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