Search a number
-
+
444240103 = 457972079
BaseRepresentation
bin11010011110101…
…001000011100111
31010221220201212011
4122132221003213
51402211140403
6112025335051
714002656436
oct3236510347
91127821764
10444240103
1120884218a
12104937487
1371061088
1442ddd11d
1529001a6d
hex1a7a90e7

444240103 has 4 divisors (see below), whose sum is σ = 445212640. Its totient is φ = 443267568.

The previous prime is 444240079. The next prime is 444240143. The reversal of 444240103 is 301042444.

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 444240103 - 29 = 444239591 is a prime.

It is a super-2 number, since 2×4442401032 = 394698538226901218, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (444240143) 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, 485583 + ... + 486496.

It is an arithmetic number, because the mean of its divisors is an integer number (111303160).

Almost surely, 2444240103 is an apocalyptic number.

444240103 is a deficient number, since it is larger than the sum of its proper divisors (972537).

444240103 is an equidigital number, since it uses as much as digits as its factorization.

444240103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 972536.

The product of its (nonzero) digits is 1536, while the sum is 22.

The square root of 444240103 is about 21077.0041277218. The cubic root of 444240103 is about 763.0258541591.

Adding to 444240103 its reverse (301042444), we get a palindrome (745282547).

The spelling of 444240103 in words is "four hundred forty-four million, two hundred forty thousand, one hundred three".

Divisors: 1 457 972079 444240103