Search a number
-
+
1444132356 = 223120344363
BaseRepresentation
bin101011000010011…
…1011011000000100
310201122101112011120
41112010323120010
510424144213411
6355144433540
750533631262
oct12604733004
93648345146
101444132356
116811a2017
123437788b0
131a02611b4
14d9b1d432
1586bb1106
hex5613b604

1444132356 has 12 divisors (see below), whose sum is σ = 3369642192. Its totient is φ = 481377448.

The previous prime is 1444132301. The next prime is 1444132357. The reversal of 1444132356 is 6532314441.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-2 number, since 2×14441323562 = 4171036523292221472, which contains 22 as substring.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (1444132357) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 60172170 + ... + 60172193.

It is an arithmetic number, because the mean of its divisors is an integer number (280803516).

Almost surely, 21444132356 is an apocalyptic number.

It is an amenable number.

1444132356 is an abundant number, since it is smaller than the sum of its proper divisors (1925509836).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1444132356 is a wasteful number, since it uses less digits than its factorization.

1444132356 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 120344370 (or 120344368 counting only the distinct ones).

The product of its digits is 34560, while the sum is 33.

The square root of 1444132356 is about 38001.7414864109. The cubic root of 1444132356 is about 1130.3223963276.

Adding to 1444132356 its reverse (6532314441), we get a palindrome (7976446797).

The spelling of 1444132356 in words is "one billion, four hundred forty-four million, one hundred thirty-two thousand, three hundred fifty-six".

Divisors: 1 2 3 4 6 12 120344363 240688726 361033089 481377452 722066178 1444132356