Search a number
-
+
44432031 = 372972959
BaseRepresentation
bin1010100101111…
…1101010011111
310002121101021210
42221133222133
542333311111
64224155503
71046444310
oct251375237
9102541253
1044432031
1123098496
1212a68b93
139288c57
145c88607
153d7a0a6
hex2a5fa9f

44432031 has 16 divisors (see below), whose sum is σ = 70041600. Its totient is φ = 24513888.

The previous prime is 44432027. The next prime is 44432039. The reversal of 44432031 is 13023444.

It is not a de Polignac number, because 44432031 - 22 = 44432027 is a prime.

It is a super-2 number, since 2×444320312 = 3948410757569922, 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 = 44431989 and 44432007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (44432039) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 35871 + ... + 37088.

It is an arithmetic number, because the mean of its divisors is an integer number (4377600).

Almost surely, 244432031 is an apocalyptic number.

44432031 is a deficient number, since it is larger than the sum of its proper divisors (25609569).

44432031 is a wasteful number, since it uses less digits than its factorization.

44432031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72998.

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

The square root of 44432031 is about 6665.7355933160. The cubic root of 44432031 is about 354.1865418573.

Adding to 44432031 its reverse (13023444), we get a palindrome (57455475).

The spelling of 44432031 in words is "forty-four million, four hundred thirty-two thousand, thirty-one".

Divisors: 1 3 7 21 29 87 203 609 72959 218877 510713 1532139 2115811 6347433 14810677 44432031