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8727040081 = 191839724967
BaseRepresentation
bin10000010000010110…
…00001000001010001
3211112012110120101201
420020023001001101
5120333110240311
64001550431201
7426156421354
oct101013010121
924465416351
108727040081
113779206421
121836802501
13a9105c156
145cb08029b
1536125e9c1
hex2082c1051

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".

Divisors: 1 19 18397 24967 349543 474373 459317899 8727040081