Base | Representation |
---|---|
bin | 1001100111010… |
… | …11101000110110 |
3 | 12121202210112110 |
4 | 10303223220312 |
5 | 131122010300 |
6 | 12000431450 |
7 | 1666400313 |
oct | 463535066 |
9 | 177683473 |
10 | 80656950 |
11 | 4158a840 |
12 | 23018586 |
13 | 1393040a |
14 | a9d7d0a |
15 | 7133550 |
hex | 4ceba36 |
80656950 has 48 divisors (see below), whose sum is σ = 218218176. Its totient is φ = 19552800.
The previous prime is 80656871. The next prime is 80656951. The reversal of 80656950 is 5965608.
It is a junction number, because it is equal to n+sod(n) for n = 80656899 and 80656908.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (80656951) by changing a digit.
It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 22792 + ... + 26091.
It is an arithmetic number, because the mean of its divisors is an integer number (4546212).
Almost surely, 280656950 is an apocalyptic number.
80656950 is an abundant number, since it is smaller than the sum of its proper divisors (137561226).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
80656950 is a wasteful number, since it uses less digits than its factorization.
80656950 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 48909 (or 48904 counting only the distinct ones).
The product of its (nonzero) digits is 64800, while the sum is 39.
The square root of 80656950 is about 8980.9214449298. The cubic root of 80656950 is about 432.0631873451.
The spelling of 80656950 in words is "eighty million, six hundred fifty-six thousand, nine hundred fifty".
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