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144330433 = 1371156371
BaseRepresentation
bin10001001101001…
…00111011000001
3101001120202010121
420212210323001
5243422033213
622153300241
73401534302
oct1046447301
9331522117
10144330433
117451a655
1240404681
1323b95430
14152507a9
15ca0e88d
hex89a4ec1

144330433 has 8 divisors (see below), whose sum is σ = 157622976. Its totient is φ = 131350800.

The previous prime is 144330413. The next prime is 144330437. The reversal of 144330433 is 334033441.

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 144330433 - 217 = 144199361 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 144330398 and 144330407.

It is not an unprimeable number, because it can be changed into a prime (144330437) 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, 77263 + ... + 79108.

It is an arithmetic number, because the mean of its divisors is an integer number (19702872).

Almost surely, 2144330433 is an apocalyptic number.

144330433 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

144330433 is a deficient number, since it is larger than the sum of its proper divisors (13292543).

144330433 is a wasteful number, since it uses less digits than its factorization.

144330433 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 156455.

The product of its (nonzero) digits is 5184, while the sum is 25.

The square root of 144330433 is about 12013.7601524252. The cubic root of 144330433 is about 524.5488889826.

Adding to 144330433 its reverse (334033441), we get a palindrome (478363874).

The spelling of 144330433 in words is "one hundred forty-four million, three hundred thirty thousand, four hundred thirty-three".

Divisors: 1 13 71 923 156371 2032823 11102341 144330433