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4372145 = 51751437
BaseRepresentation
bin10000101011011010110001
322020010110022
4100223122301
52104402040
6233413225
752106531
oct20533261
98203408
104372145
112516948
12156a215
13ba108b
1481b4c1
155b56b5
hex42b6b1

4372145 has 8 divisors (see below), whose sum is σ = 5555304. Its totient is φ = 3291904.

The previous prime is 4372141. The next prime is 4372153. The reversal of 4372145 is 5412734.

It can be written as a sum of positive squares in 4 ways, for example, as 2155024 + 2217121 = 1468^2 + 1489^2 .

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 4372145 - 22 = 4372141 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4372141) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 25634 + ... + 25803.

It is an arithmetic number, because the mean of its divisors is an integer number (694413).

Almost surely, 24372145 is an apocalyptic number.

It is an amenable number.

4372145 is a deficient number, since it is larger than the sum of its proper divisors (1183159).

4372145 is a wasteful number, since it uses less digits than its factorization.

4372145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51459.

The product of its digits is 3360, while the sum is 26.

The square root of 4372145 is about 2090.9674794219. The cubic root of 4372145 is about 163.5177310276.

Adding to 4372145 its reverse (5412734), we get a palindrome (9784879).

The spelling of 4372145 in words is "four million, three hundred seventy-two thousand, one hundred forty-five".

Divisors: 1 5 17 85 51437 257185 874429 4372145