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4161285 = 3251931157
BaseRepresentation
bin1111110111111100000101
321211102012200
433313330011
52031130120
6225105113
750241012
oct17677405
97742180
104161285
112392487
121488199
13b290cb
147a4709
15572e90
hex3f7f05

4161285 has 48 divisors (see below), whose sum is σ = 7887360. Its totient is φ = 2021760.

The previous prime is 4161271. The next prime is 4161299. The reversal of 4161285 is 5821614.

4161285 is a `hidden beast` number, since 41 + 612 + 8 + 5 = 666.

It is an interprime number because it is at equal distance from previous prime (4161271) and next prime (4161299).

It is not a de Polignac number, because 4161285 - 26 = 4161221 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 26427 + ... + 26583.

It is an arithmetic number, because the mean of its divisors is an integer number (164320).

Almost surely, 24161285 is an apocalyptic number.

4161285 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

4161285 is a deficient number, since it is larger than the sum of its proper divisors (3726075).

4161285 is a wasteful number, since it uses less digits than its factorization.

4161285 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 218 (or 215 counting only the distinct ones).

The product of its digits is 1920, while the sum is 27.

The square root of 4161285 is about 2039.9227926566. The cubic root of 4161285 is about 160.8455883587.

Adding to 4161285 its reverse (5821614), we get a palindrome (9982899).

The spelling of 4161285 in words is "four million, one hundred sixty-one thousand, two hundred eighty-five".

Divisors: 1 3 5 9 15 19 31 45 57 93 95 155 157 171 279 285 465 471 589 785 855 1395 1413 1767 2355 2945 2983 4867 5301 7065 8835 8949 14601 14915 24335 26505 26847 43803 44745 73005 92473 134235 219015 277419 462365 832257 1387095 4161285