Base | Representation |
---|---|
bin | 1001100111110… |
… | …01011100101000 |
3 | 12121212200010100 |
4 | 10303321130220 |
5 | 131130313022 |
6 | 12001545400 |
7 | 2000024235 |
oct | 463713450 |
9 | 177780110 |
10 | 80713512 |
11 | 41619290 |
12 | 23045260 |
13 | 13950099 |
14 | aa1078c |
15 | 71451ac |
hex | 4cf9728 |
80713512 has 96 divisors (see below), whose sum is σ = 240065280. Its totient is φ = 24295680.
The previous prime is 80713489. The next prime is 80713513. The reversal of 80713512 is 21531708.
80713512 is a `hidden beast` number, since 80 + 71 + 3 + 512 = 666.
It is not an unprimeable number, because it can be changed into a prime (80713513) 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, 176388 + ... + 176844.
It is an arithmetic number, because the mean of its divisors is an integer number (2500680).
Almost surely, 280713512 is an apocalyptic number.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 80713512, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (120032640).
80713512 is an abundant number, since it is smaller than the sum of its proper divisors (159351768).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
80713512 is a wasteful number, since it uses less digits than its factorization.
80713512 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 703 (or 696 counting only the distinct ones).
The product of its (nonzero) digits is 1680, while the sum is 27.
The square root of 80713512 is about 8984.0699017761. The cubic root of 80713512 is about 432.1641608617.
It can be divided in two parts, 80713 and 512, that added together give a square (81225 = 2852).
The spelling of 80713512 in words is "eighty million, seven hundred thirteen thousand, five hundred twelve".
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