Search a number
-
+
444420241 = 1926311951
BaseRepresentation
bin11010011111010…
…101000010010001
31010222020212221221
4122133111002101
51402232421431
6112033245041
714004336556
oct3237250221
91128225857
10444420241
11208955561
12104a03781
13710c5075
1443048a2d
152903a111
hex1a7d5091

444420241 has 12 divisors (see below), whose sum is σ = 470025984. Its totient is φ = 420147000.

The previous prime is 444420199. The next prime is 444420257. The reversal of 444420241 is 142024444.

It is not a de Polignac number, because 444420241 - 211 = 444418193 is a prime.

It is a super-3 number, since 3×4444202413 (a number of 27 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (444420271) 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, 226816 + ... + 228766.

It is an arithmetic number, because the mean of its divisors is an integer number (39168832).

Almost surely, 2444420241 is an apocalyptic number.

It is an amenable number.

444420241 is a deficient number, since it is larger than the sum of its proper divisors (25605743).

444420241 is a wasteful number, since it uses less digits than its factorization.

444420241 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2620 (or 2601 counting only the distinct ones).

The product of its (nonzero) digits is 4096, while the sum is 25.

The square root of 444420241 is about 21081.2770248863. The cubic root of 444420241 is about 763.1289751036.

Adding to 444420241 its reverse (142024444), we get a palindrome (586444685).

The spelling of 444420241 in words is "four hundred forty-four million, four hundred twenty thousand, two hundred forty-one".

Divisors: 1 19 361 631 1951 11989 37069 227791 704311 1231081 23390539 444420241