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4387117 = 7289533
BaseRepresentation
bin10000101111000100101101
322020212222211
4100233010231
52110341432
6234010421
752201300
oct20570455
98225884
104387117
112527119
121576a11
13ba7b37
14822b37
155b9d47
hex42f12d

4387117 has 6 divisors (see below), whose sum is σ = 5103438. Its totient is φ = 3760344.

The previous prime is 4387099. The next prime is 4387133. The reversal of 4387117 is 7117834.

It can be written as a sum of positive squares in only one way, i.e., 4351396 + 35721 = 2086^2 + 189^2 .

It is not a de Polignac number, because 4387117 - 215 = 4354349 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4387147) 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 5 ways as a sum of consecutive naturals, for example, 44718 + ... + 44815.

It is an arithmetic number, because the mean of its divisors is an integer number (850573).

Almost surely, 24387117 is an apocalyptic number.

It is an amenable number.

4387117 is a deficient number, since it is larger than the sum of its proper divisors (716321).

4387117 is an equidigital number, since it uses as much as digits as its factorization.

4387117 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 89547 (or 89540 counting only the distinct ones).

The product of its digits is 4704, while the sum is 31.

The square root of 4387117 is about 2094.5445805712. The cubic root of 4387117 is about 163.7041687482.

The spelling of 4387117 in words is "four million, three hundred eighty-seven thousand, one hundred seventeen".

Divisors: 1 7 49 89533 626731 4387117