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4081428287 = 31223590399
BaseRepresentation
bin1111001101000101…
…1010011100111111
3101112102221001001122
43303101122130333
531324321201122
61512555101155
7203066365556
oct36321323477
911472831048
104081428287
111804950532
1295aa417bb
13500761c31
142aa0acd9d
1518d4ac142
hexf345a73f

4081428287 has 8 divisors (see below), whose sum is σ = 4231987200. Its totient is φ = 3932050680.

The previous prime is 4081428277. The next prime is 4081428311. The reversal of 4081428287 is 7828241804.

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 4081428287 - 28 = 4081428031 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4081428257) 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, 288287 + ... + 302112.

It is an arithmetic number, because the mean of its divisors is an integer number (528998400).

Almost surely, 24081428287 is an apocalyptic number.

4081428287 is a deficient number, since it is larger than the sum of its proper divisors (150558913).

4081428287 is a wasteful number, since it uses less digits than its factorization.

4081428287 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 590653.

The product of its (nonzero) digits is 229376, while the sum is 44.

The square root of 4081428287 is about 63886.0570625547. The cubic root of 4081428287 is about 1598.1003870983.

The spelling of 4081428287 in words is "four billion, eighty-one million, four hundred twenty-eight thousand, two hundred eighty-seven".

Divisors: 1 31 223 6913 590399 18302369 131658977 4081428287