Search a number
-
+
44042031 = 3211444869
BaseRepresentation
bin1010100000000…
…0011100101111
310001212120022100
42220000130233
542233321111
64211550143
71043231265
oct250003457
9101776270
1044042031
1122951480
12128bb353
139180597
145bc6435
153cee756
hex2a0072f

44042031 has 12 divisors (see below), whose sum is σ = 69399720. Its totient is φ = 26692080.

The previous prime is 44042029. The next prime is 44042051. The reversal of 44042031 is 13024044.

It is not a de Polignac number, because 44042031 - 21 = 44042029 is a prime.

It is a super-2 number, since 2×440420312 = 3879400989209922, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 44041995 and 44042013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (44042051) 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 11 ways as a sum of consecutive naturals, for example, 222336 + ... + 222533.

It is an arithmetic number, because the mean of its divisors is an integer number (5783310).

Almost surely, 244042031 is an apocalyptic number.

44042031 is a deficient number, since it is larger than the sum of its proper divisors (25357689).

44042031 is a wasteful number, since it uses less digits than its factorization.

44042031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 444886 (or 444883 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 18.

The square root of 44042031 is about 6636.4170302958. The cubic root of 44042031 is about 353.1472099326.

Adding to 44042031 its reverse (13024044), we get a palindrome (57066075).

The spelling of 44042031 in words is "forty-four million, forty-two thousand, thirty-one".

Divisors: 1 3 9 11 33 99 444869 1334607 4003821 4893559 14680677 44042031