Search a number
-
+
44031443431 = 263167419937
BaseRepresentation
bin101001000000011110…
…101000000111100111
311012122121221002020011
4221000132220013213
51210134022142211
632121110351051
73116066044123
oct510036500747
9135577832204
1044031443431
1117745669178
12864a05b487
1341c9362c51
1421b9b88583
15122a8bd921
hexa407a81e7

44031443431 has 4 divisors (see below), whose sum is σ = 44198863632. Its totient is φ = 43864023232.

The previous prime is 44031443381. The next prime is 44031443447. The reversal of 44031443431 is 13434413044.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 44031443431 - 29 = 44031442919 is a prime.

It is a super-2 number, since 2×440314434312 (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 44031443393 and 44031443402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (44031443461) 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, 83709706 + ... + 83710231.

It is an arithmetic number, because the mean of its divisors is an integer number (11049715908).

Almost surely, 244031443431 is an apocalyptic number.

44031443431 is a deficient number, since it is larger than the sum of its proper divisors (167420201).

44031443431 is a wasteful number, since it uses less digits than its factorization.

44031443431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 167420200.

The product of its (nonzero) digits is 27648, while the sum is 31.

Adding to 44031443431 its reverse (13434413044), we get a palindrome (57465856475).

The spelling of 44031443431 in words is "forty-four billion, thirty-one million, four hundred forty-three thousand, four hundred thirty-one".

Divisors: 1 263 167419937 44031443431