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4442137 = 71494259
BaseRepresentation
bin10000111100100000011001
322100200110121
4100330200121
52114122022
6235113241
752520560
oct20744031
98320417
104442137
112564497
1215a2821
13bc6bab
14838bd7
155cb2c7
hex43c819

4442137 has 8 divisors (see below), whose sum is σ = 5112000. Its totient is φ = 3781104.

The previous prime is 4442131. The next prime is 4442159. The reversal of 4442137 is 7312444.

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 4442137 - 211 = 4440089 is a prime.

It is a super-2 number, since 2×44421372 = 39465162253538, which contains 22 as substring.

It is a Duffinian number.

4442137 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (4442131) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1087 + ... + 3172.

It is an arithmetic number, because the mean of its divisors is an integer number (639000).

Almost surely, 24442137 is an apocalyptic number.

It is an amenable number.

4442137 is a deficient number, since it is larger than the sum of its proper divisors (669863).

4442137 is a wasteful number, since it uses less digits than its factorization.

4442137 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4415.

The product of its digits is 2688, while the sum is 25.

The square root of 4442137 is about 2107.6377772283. The cubic root of 4442137 is about 164.3856801265.

Subtracting from 4442137 its product of digits (2688), we obtain a square (4439449 = 21072).

The spelling of 4442137 in words is "four million, four hundred forty-two thousand, one hundred thirty-seven".

Divisors: 1 7 149 1043 4259 29813 634591 4442137