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144423030 = 2355718431
BaseRepresentation
bin10001001101110…
…11100001110110
3101001202110011010
420212323201312
5243433014110
622155253050
73402401253
oct1046734166
9331673133
10144423030
1174583184
124044a186
1323bc861b
141527642a
15ca2c020
hex89bb876

144423030 has 32 divisors (see below), whose sum is σ = 347263488. Its totient is φ = 38440800.

The previous prime is 144423029. The next prime is 144423043. The reversal of 144423030 is 30324441.

It is a junction number, because it is equal to n+sod(n) for n = 144422988 and 144423006.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12915 + ... + 21345.

It is an arithmetic number, because the mean of its divisors is an integer number (10851984).

Almost surely, 2144423030 is an apocalyptic number.

144423030 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

144423030 is an abundant number, since it is smaller than the sum of its proper divisors (202840458).

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

144423030 is a wasteful number, since it uses less digits than its factorization.

144423030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9012.

The product of its (nonzero) digits is 1152, while the sum is 21.

The square root of 144423030 is about 12017.6133237844. The cubic root of 144423030 is about 524.6610419751.

Adding to 144423030 its reverse (30324441), we get a palindrome (174747471).

The spelling of 144423030 in words is "one hundred forty-four million, four hundred twenty-three thousand, thirty".

Divisors: 1 2 3 5 6 10 15 30 571 1142 1713 2855 3426 5710 8431 8565 16862 17130 25293 42155 50586 84310 126465 252930 4814101 9628202 14442303 24070505 28884606 48141010 72211515 144423030