Base | Representation |
---|---|
bin | 1001100101111… |
… | …10000010000001 |
3 | 12121102022021202 |
4 | 10302332002001 |
5 | 131100021040 |
6 | 11552430545 |
7 | 1664661560 |
oct | 462760201 |
9 | 177368252 |
10 | 80470145 |
11 | 41472458 |
12 | 22b48455 |
13 | 13896392 |
14 | a989bd7 |
15 | 70e8015 |
hex | 4cbe081 |
80470145 has 8 divisors (see below), whose sum is σ = 110359104. Its totient is φ = 55179504.
The previous prime is 80470087. The next prime is 80470147. The reversal of 80470145 is 54107408.
It is a sphenic number, since it is the product of 3 distinct primes.
It is a cyclic number.
It is not a de Polignac number, because 80470145 - 28 = 80469889 is a prime.
It is a Duffinian number.
It is a Curzon number.
It is not an unprimeable number, because it can be changed into a prime (80470147) by changing a digit.
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 7 ways as a sum of consecutive naturals, for example, 1149539 + ... + 1149608.
It is an arithmetic number, because the mean of its divisors is an integer number (13794888).
Almost surely, 280470145 is an apocalyptic number.
It is an amenable number.
80470145 is a deficient number, since it is larger than the sum of its proper divisors (29888959).
80470145 is a wasteful number, since it uses less digits than its factorization.
80470145 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 2299159.
The product of its (nonzero) digits is 4480, while the sum is 29.
The square root of 80470145 is about 8970.5153140720. The cubic root of 80470145 is about 431.7293704638.
The spelling of 80470145 in words is "eighty million, four hundred seventy thousand, one hundred forty-five".
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