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1144423 = 71759163
BaseRepresentation
bin100010111011001100111
32011010212001
410113121213
5243110143
640310131
712504340
oct4273147
92133761
101144423
11711905
12472347
13310b97
1421b0c7
1517914d
hex117667

1144423 has 16 divisors (see below), whose sum is σ = 1416960. Its totient is φ = 902016.

The previous prime is 1144417. The next prime is 1144439. The reversal of 1144423 is 3244411.

It is a cyclic number.

It is not a de Polignac number, because 1144423 - 213 = 1136231 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1144423.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1144453) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6940 + ... + 7102.

It is an arithmetic number, because the mean of its divisors is an integer number (88560).

21144423 is an apocalyptic number.

1144423 is a deficient number, since it is larger than the sum of its proper divisors (272537).

1144423 is a wasteful number, since it uses less digits than its factorization.

1144423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 246.

The product of its digits is 384, while the sum is 19.

The square root of 1144423 is about 1069.7770795825. Note that the first 3 decimals coincide. The cubic root of 1144423 is about 104.5993195071.

Adding to 1144423 its reverse (3244411), we get a palindrome (4388834).

The spelling of 1144423 in words is "one million, one hundred forty-four thousand, four hundred twenty-three".

Divisors: 1 7 17 59 119 163 413 1003 1141 2771 7021 9617 19397 67319 163489 1144423