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4078085 = 511531399
BaseRepresentation
bin1111100011101000000101
321200012002012
433203220011
52020444320
6223224005
746443314
oct17435005
97605065
104078085
112335a20
121448005
13aca28b
1478227b
155584c5
hex3e3a05

4078085 has 16 divisors (see below), whose sum is σ = 5443200. Its totient is φ = 2907840.

The previous prime is 4078073. The next prime is 4078099. The reversal of 4078085 is 5808704.

4078085 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 4078085 - 210 = 4077061 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2216 + ... + 3614.

It is an arithmetic number, because the mean of its divisors is an integer number (340200).

Almost surely, 24078085 is an apocalyptic number.

It is an amenable number.

4078085 is a deficient number, since it is larger than the sum of its proper divisors (1365115).

4078085 is a wasteful number, since it uses less digits than its factorization.

4078085 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1468.

The product of its (nonzero) digits is 8960, while the sum is 32.

The square root of 4078085 is about 2019.4268988998. The cubic root of 4078085 is about 159.7663908541.

It can be divided in two parts, 40 and 78085, that added together give a 7-th power (78125 = 57).

The spelling of 4078085 in words is "four million, seventy-eight thousand, eighty-five".

Divisors: 1 5 11 53 55 265 583 1399 2915 6995 15389 74147 76945 370735 815617 4078085