Search a number
-
+
44243031 = 372300973
BaseRepresentation
bin1010100011000…
…1100001010111
310002020210000210
42220301201113
542311234111
64220140503
71045026300
oct250614127
9102223023
1044243031
1122a79498
1212997733
139220c11
145c397a7
153d3e0a6
hex2a31857

44243031 has 12 divisors (see below), whose sum is σ = 68622072. Its totient is φ = 25281648.

The previous prime is 44242999. The next prime is 44243033. The reversal of 44243031 is 13034244.

It is not a de Polignac number, because 44243031 - 25 = 44242999 is a prime.

It is a super-2 number, since 2×442430312 = 3914891584133922, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a junction number, because it is equal to n+sod(n) for n = 44242989 and 44243007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (44243033) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 150340 + ... + 150633.

It is an arithmetic number, because the mean of its divisors is an integer number (5718506).

Almost surely, 244243031 is an apocalyptic number.

44243031 is a deficient number, since it is larger than the sum of its proper divisors (24379041).

44243031 is a wasteful number, since it uses less digits than its factorization.

44243031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 300990 (or 300983 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 21.

The square root of 44243031 is about 6651.5435050821. The cubic root of 44243031 is about 353.6836284142.

Adding to 44243031 its reverse (13034244), we get a palindrome (57277275).

The spelling of 44243031 in words is "forty-four million, two hundred forty-three thousand, thirty-one".

Divisors: 1 3 7 21 49 147 300973 902919 2106811 6320433 14747677 44243031