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4152481 = 29312149
BaseRepresentation
bin1111110101110010100001
321210222010121
433311302201
52030334411
6225000241
750203234
oct17656241
97728117
104152481
112386903
121483081
13b250b8
147a141b
15570571
hex3f5ca1

4152481 has 12 divisors (see below), whose sum is σ = 4468500. Its totient is φ = 3853920.

The previous prime is 4152433. The next prime is 4152503. The reversal of 4152481 is 1842514.

It can be written as a sum of positive squares in 2 ways, for example, as 1245456 + 2907025 = 1116^2 + 1705^2 .

It is not a de Polignac number, because 4152481 - 27 = 4152353 is a prime.

It is a super-2 number, since 2×41524812 = 34486196910722, which contains 22 as substring.

It is a Duffinian number.

4152481 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (4162481) 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 11 ways as a sum of consecutive naturals, for example, 27795 + ... + 27943.

It is an arithmetic number, because the mean of its divisors is an integer number (372375).

Almost surely, 24152481 is an apocalyptic number.

It is an amenable number.

4152481 is a deficient number, since it is larger than the sum of its proper divisors (316019).

4152481 is a wasteful number, since it uses less digits than its factorization.

4152481 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 240 (or 209 counting only the distinct ones).

The product of its digits is 1280, while the sum is 25.

The square root of 4152481 is about 2037.7637252636. The cubic root of 4152481 is about 160.7320749926.

Adding to 4152481 its reverse (1842514), we get a palindrome (5994995).

The spelling of 4152481 in words is "four million, one hundred fifty-two thousand, four hundred eighty-one".

Divisors: 1 29 31 149 899 961 4321 4619 27869 133951 143189 4152481