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4252069 = 41137757
BaseRepresentation
bin10000001110000110100101
322000000202001
4100032012211
52042031234
6231045301
751066463
oct20160645
98000661
104252069
112444708
121510831
13b5b523
147c9833
1558ed14
hex40e1a5

4252069 has 8 divisors (see below), whose sum is σ = 4393368. Its totient is φ = 4112640.

The previous prime is 4252063. The next prime is 4252081. The reversal of 4252069 is 9602524.

It can be written as a sum of positive squares in 4 ways, for example, as 191844 + 4060225 = 438^2 + 2015^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 4252069 - 25 = 4252037 is a prime.

It is a super-3 number, since 3×42520693 (a number of 21 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

4252069 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4252063) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5239 + ... + 5995.

It is an arithmetic number, because the mean of its divisors is an integer number (549171).

Almost surely, 24252069 is an apocalyptic number.

It is an amenable number.

4252069 is a deficient number, since it is larger than the sum of its proper divisors (141299).

4252069 is a wasteful number, since it uses less digits than its factorization.

4252069 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 935.

The product of its (nonzero) digits is 4320, while the sum is 28.

The square root of 4252069 is about 2062.0545579591. The cubic root of 4252069 is about 162.0068711204.

The spelling of 4252069 in words is "four million, two hundred fifty-two thousand, sixty-nine".

Divisors: 1 41 137 757 5617 31037 103709 4252069