Search a number
-
+
144330233 = 1393313137
BaseRepresentation
bin10001001101001…
…00110111111001
3101001120201212012
420212210313321
5243422031413
622153255305
73401533565
oct1046446771
9331521765
10144330233
117451a493
1240404535
1323b95308
14152506a5
15ca0e7a8
hex89a4df9

144330233 has 8 divisors (see below), whose sum is σ = 145854240. Its totient is φ = 142813440.

The previous prime is 144330211. The next prime is 144330239. The reversal of 144330233 is 332033441.

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 144330233 - 26 = 144330169 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 144330199 and 144330208.

It is not an unprimeable number, because it can be changed into a prime (144330239) 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, 44441 + ... + 47577.

It is an arithmetic number, because the mean of its divisors is an integer number (18231780).

Almost surely, 2144330233 is an apocalyptic number.

It is an amenable number.

144330233 is a deficient number, since it is larger than the sum of its proper divisors (1524007).

144330233 is a wasteful number, since it uses less digits than its factorization.

144330233 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3607.

The product of its (nonzero) digits is 2592, while the sum is 23.

The square root of 144330233 is about 12013.7518286337. The cubic root of 144330233 is about 524.5486466918.

Adding to 144330233 its reverse (332033441), we get a palindrome (476363674).

The spelling of 144330233 in words is "one hundred forty-four million, three hundred thirty thousand, two hundred thirty-three".

Divisors: 1 139 331 3137 46009 436043 1038347 144330233