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4006885 = 57111287
BaseRepresentation
bin1111010010001111100101
321112120102011
433102033211
52011210020
6221514221
746025611
oct17221745
97476364
104006885
112297483
121412971
13aa3a4c
14764341
1554235a
hex3d23e5

4006885 has 8 divisors (see below), whose sum is σ = 4876416. Its totient is φ = 3160080.

The previous prime is 4006879. The next prime is 4006913. The reversal of 4006885 is 5886004.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 4006885 - 211 = 4004837 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5289 + ... + 5998.

It is an arithmetic number, because the mean of its divisors is an integer number (609552).

Almost surely, 24006885 is an apocalyptic number.

It is an amenable number.

4006885 is a deficient number, since it is larger than the sum of its proper divisors (869531).

4006885 is a wasteful number, since it uses less digits than its factorization.

4006885 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11363.

The product of its (nonzero) digits is 7680, while the sum is 31.

The square root of 4006885 is about 2001.7205099614. The cubic root of 4006885 is about 158.8311301266.

The spelling of 4006885 in words is "four million, six thousand, eight hundred eighty-five".

Divisors: 1 5 71 355 11287 56435 801377 4006885