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144424344 = 23310159581
BaseRepresentation
bin10001001101110…
…11110110011000
3101001202111221210
420212323312120
5243433034334
622155303120
73402405141
oct1046736630
9331674853
10144424344
1174584169
124044aaa0
1323bc90bc
1415276ac8
15ca2c5e9
hex89bbd98

144424344 has 32 divisors (see below), whose sum is σ = 364641840. Its totient is φ = 47664000.

The previous prime is 144424327. The next prime is 144424349. The reversal of 144424344 is 443424441.

It is a super-2 number, since 2×1444243442 = 41716782279660672, which contains 22 as substring.

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (144424349) 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, 27367 + ... + 32214.

Almost surely, 2144424344 is an apocalyptic number.

It is an amenable number.

144424344 is an abundant number, since it is smaller than the sum of its proper divisors (220217496).

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

144424344 is a wasteful number, since it uses less digits than its factorization.

144424344 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59691 (or 59687 counting only the distinct ones).

The product of its digits is 24576, while the sum is 30.

The square root of 144424344 is about 12017.6679934170. The cubic root of 144424344 is about 524.6626331399.

Adding to 144424344 its reverse (443424441), we get a palindrome (587848785).

The spelling of 144424344 in words is "one hundred forty-four million, four hundred twenty-four thousand, three hundred forty-four".

Divisors: 1 2 3 4 6 8 12 24 101 202 303 404 606 808 1212 2424 59581 119162 178743 238324 357486 476648 714972 1429944 6017681 12035362 18053043 24070724 36106086 48141448 72212172 144424344