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4078287 = 32453143
BaseRepresentation
bin1111100011101011001111
321200012100200
433203223033
52021001122
6223224543
746444023
oct17435317
97605320
104078287
112336094
121448153
13aca3b5
14782383
155585ac
hex3e3acf

4078287 has 6 divisors (see below), whose sum is σ = 5890872. Its totient is φ = 2718852.

The previous prime is 4078273. The next prime is 4078301. The reversal of 4078287 is 7828704.

It is an interprime number because it is at equal distance from previous prime (4078273) and next prime (4078301).

It is not a de Polignac number, because 4078287 - 27 = 4078159 is a prime.

4078287 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4078187) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 226563 + ... + 226580.

It is an arithmetic number, because the mean of its divisors is an integer number (981812).

Almost surely, 24078287 is an apocalyptic number.

4078287 is a deficient number, since it is larger than the sum of its proper divisors (1812585).

4078287 is a wasteful number, since it uses less digits than its factorization.

4078287 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 453149 (or 453146 counting only the distinct ones).

The product of its (nonzero) digits is 25088, while the sum is 36.

The square root of 4078287 is about 2019.4769124702. The cubic root of 4078287 is about 159.7690287163.

The spelling of 4078287 in words is "four million, seventy-eight thousand, two hundred eighty-seven".

Divisors: 1 3 9 453143 1359429 4078287