Search a number
-
+
444330223113221 = 8313723390102469
BaseRepresentation
bin110010100000111011011000…
…1000111001001010000000101
32011021020112222012221002022022
41211001312301013021100011
5431214401244104110341
64213002253032412525
7162406541100114434
oct14501666107112005
92137215865832268
10444330223113221
11119639431311955
1241a02210847145
13160c12110c2393
147ba19aa0cb11b
1536580ae9b0e4b
hex1941db11c9405

444330223113221 has 8 divisors (see below), whose sum is σ = 449716369055520. Its totient is φ = 438944857403472.

The previous prime is 444330223113211. The next prime is 444330223113223. The reversal of 444330223113221 is 122311322033444.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 444330223113221 - 26 = 444330223113157 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (444330223113223) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 193912226 + ... + 196190243.

It is an arithmetic number, because the mean of its divisors is an integer number (56214546131940).

Almost surely, 2444330223113221 is an apocalyptic number.

It is an amenable number.

444330223113221 is a deficient number, since it is larger than the sum of its proper divisors (5386145942299).

444330223113221 is a wasteful number, since it uses less digits than its factorization.

444330223113221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 390116275.

The product of its (nonzero) digits is 82944, while the sum is 35.

Adding to 444330223113221 its reverse (122311322033444), we get a palindrome (566641545146665).

The spelling of 444330223113221 in words is "four hundred forty-four trillion, three hundred thirty billion, two hundred twenty-three million, one hundred thirteen thousand, two hundred twenty-one".

Divisors: 1 83 13723 1139009 390102469 32378504927 5353376182087 444330223113221