Base | Representation |
---|---|
bin | 1001101000000… |
… | …11000000101101 |
3 | 12121221122212012 |
4 | 10310003000231 |
5 | 131133041220 |
6 | 12002451005 |
7 | 2000246366 |
oct | 464030055 |
9 | 177848765 |
10 | 80752685 |
11 | 41645762 |
12 | 23063a65 |
13 | 13964b70 |
14 | aa20b6d |
15 | 7151ac5 |
hex | 4d0302d |
80752685 has 16 divisors (see below), whose sum is σ = 107180976. Its totient is φ = 58019328.
The previous prime is 80752649. The next prime is 80752691. The reversal of 80752685 is 58625708.
It can be written as a sum of positive squares in 8 ways, for example, as 417316 + 80335369 = 646^2 + 8963^2 .
It is a cyclic number.
It is not a de Polignac number, because 80752685 - 216 = 80687149 is a prime.
It is a super-2 number, since 2×807526852 = 13041992269418450, which contains 22 as substring.
It is a Duffinian number.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14384 + ... + 19193.
It is an arithmetic number, because the mean of its divisors is an integer number (6698811).
Almost surely, 280752685 is an apocalyptic number.
It is an amenable number.
80752685 is a deficient number, since it is larger than the sum of its proper divisors (26428291).
80752685 is a wasteful number, since it uses less digits than its factorization.
80752685 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 33632.
The product of its (nonzero) digits is 134400, while the sum is 41.
The square root of 80752685 is about 8986.2497739602. The cubic root of 80752685 is about 432.2340641869.
The spelling of 80752685 in words is "eighty million, seven hundred fifty-two thousand, six hundred eighty-five".
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