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44162389 = 291522841
BaseRepresentation
bin1010100001110…
…1110101010101
310002002200102001
42220131311111
542301144024
64214315301
71044242215
oct250356525
9102080361
1044162389
1122a23947
1212958b31
1391c32bb
145c18245
153d25244
hex2a1dd55

44162389 has 4 divisors (see below), whose sum is σ = 45685260. Its totient is φ = 42639520.

The previous prime is 44162357. The next prime is 44162399. The reversal of 44162389 is 98326144.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 24581764 + 19580625 = 4958^2 + 4425^2 .

It is a cyclic number.

It is not a de Polignac number, because 44162389 - 25 = 44162357 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 (44162309) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 761392 + ... + 761449.

It is an arithmetic number, because the mean of its divisors is an integer number (11421315).

Almost surely, 244162389 is an apocalyptic number.

It is an amenable number.

44162389 is a deficient number, since it is larger than the sum of its proper divisors (1522871).

44162389 is a wasteful number, since it uses less digits than its factorization.

44162389 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1522870.

The product of its digits is 41472, while the sum is 37.

The square root of 44162389 is about 6645.4788390303. The cubic root of 44162389 is about 353.4686107341.

It can be divided in two parts, 44162 and 389, that added together give a triangular number (44551 = T298).

The spelling of 44162389 in words is "forty-four million, one hundred sixty-two thousand, three hundred eighty-nine".

Divisors: 1 29 1522841 44162389