Base | Representation |
---|---|
bin | 10000010000010110… |
… | …00001000001010001 |
3 | 211112012110120101201 |
4 | 20020023001001101 |
5 | 120333110240311 |
6 | 4001550431201 |
7 | 426156421354 |
oct | 101013010121 |
9 | 24465416351 |
10 | 8727040081 |
11 | 3779206421 |
12 | 1836802501 |
13 | a9105c156 |
14 | 5cb08029b |
15 | 36125e9c1 |
hex | 2082c1051 |
8727040081 has 8 divisors (see below), whose sum is σ = 9187225280. Its totient is φ = 8266941648.
The previous prime is 8727040033. The next prime is 8727040097. The reversal of 8727040081 is 1800407278.
It is a sphenic number, since it is the product of 3 distinct primes.
It is a de Polignac number, because none of the positive numbers 2k-8727040081 is a prime.
It is a super-2 number, since 2×87270400812 (a number of 21 digits) contains 22 as substring.
It is a Duffinian number.
It is a self number, because there is not a number n which added to its sum of digits gives 8727040081.
It is not an unprimeable number, because it can be changed into a prime (8727040001) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 337060 + ... + 362026.
It is an arithmetic number, because the mean of its divisors is an integer number (1148403160).
Almost surely, 28727040081 is an apocalyptic number.
It is an amenable number.
8727040081 is a deficient number, since it is larger than the sum of its proper divisors (460185199).
8727040081 is a wasteful number, since it uses less digits than its factorization.
8727040081 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 43383.
The product of its (nonzero) digits is 25088, while the sum is 37.
The square root of 8727040081 is about 93418.6281263004. The cubic root of 8727040081 is about 2058.8387020563.
The spelling of 8727040081 in words is "eight billion, seven hundred twenty-seven million, forty thousand, eighty-one".
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