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4428142 = 22518821
BaseRepresentation
bin10000111001000101101110
322022222021021
4100321011232
52113200032
6234524354
752432015
oct20710556
98288237
104428142
112554a24
1215966ba
13bc0704
14833a7c
155c7097
hex43916e

4428142 has 8 divisors (see below), whose sum is σ = 6669432. Its totient is φ = 2205000.

The previous prime is 4428139. The next prime is 4428161. The reversal of 4428142 is 2418244.

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

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 3909 + ... + 4912.

It is an arithmetic number, because the mean of its divisors is an integer number (833679).

Almost surely, 24428142 is an apocalyptic number.

4428142 is a deficient number, since it is larger than the sum of its proper divisors (2241290).

4428142 is a wasteful number, since it uses less digits than its factorization.

4428142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9074.

The product of its digits is 2048, while the sum is 25.

The square root of 4428142 is about 2104.3150904748. The cubic root of 4428142 is about 164.2128655683.

The spelling of 4428142 in words is "four million, four hundred twenty-eight thousand, one hundred forty-two".

Divisors: 1 2 251 502 8821 17642 2214071 4428142