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4072061 = 717191801
BaseRepresentation
bin1111100010001001111101
321122212211002
433202021331
52020301221
6223140045
746416620
oct17421175
97585732
104072061
112331444
121444625
13ac7606
1477ddb7
1555680b
hex3e227d

4072061 has 16 divisors (see below), whose sum is σ = 5189760. Its totient is φ = 3110400.

The previous prime is 4072049. The next prime is 4072073. The reversal of 4072061 is 1602704.

It is an interprime number because it is at equal distance from previous prime (4072049) and next prime (4072073).

It is a cyclic number.

It is not a de Polignac number, because 4072061 - 210 = 4071037 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4072091) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 1361 + ... + 3161.

It is an arithmetic number, because the mean of its divisors is an integer number (324360).

Almost surely, 24072061 is an apocalyptic number.

It is an amenable number.

4072061 is a deficient number, since it is larger than the sum of its proper divisors (1117699).

4072061 is a wasteful number, since it uses less digits than its factorization.

4072061 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1844.

The product of its (nonzero) digits is 336, while the sum is 20.

The square root of 4072061 is about 2017.9348354196. The cubic root of 4072061 is about 159.6876850385.

Adding to 4072061 its reverse (1602704), we get a palindrome (5674765).

The spelling of 4072061 in words is "four million, seventy-two thousand, sixty-one".

Divisors: 1 7 17 19 119 133 323 1801 2261 12607 30617 34219 214319 239533 581723 4072061