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4002291 = 3449411
BaseRepresentation
bin1111010001000111110011
321112100010000
433101013303
52011033131
6221441043
746006326
oct17210763
97470100
104002291
112293a87
121410183
13aa1927
147627bd
15540ce6
hex3d11f3

4002291 has 10 divisors (see below), whose sum is σ = 5978852. Its totient is φ = 2668140.

The previous prime is 4002281. The next prime is 4002301. The reversal of 4002291 is 1922004.

It is an interprime number because it is at equal distance from previous prime (4002281) and next prime (4002301).

It is not a de Polignac number, because 4002291 - 29 = 4001779 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4002221) 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 9 ways as a sum of consecutive naturals, for example, 24625 + ... + 24786.

Almost surely, 24002291 is an apocalyptic number.

4002291 is a deficient number, since it is larger than the sum of its proper divisors (1976561).

4002291 is an equidigital number, since it uses as much as digits as its factorization.

4002291 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49423 (or 49414 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

The square root of 4002291 is about 2000.5726680128. The cubic root of 4002291 is about 158.7704055445.

Adding to 4002291 its reverse (1922004), we get a palindrome (5924295).

The spelling of 4002291 in words is "four million, two thousand, two hundred ninety-one".

Divisors: 1 3 9 27 81 49411 148233 444699 1334097 4002291