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144005430 = 2355981359
BaseRepresentation
bin10001001010101…
…01100100110110
3101000222020022110
420211111210312
5243331133210
622142311450
73366011622
oct1045254466
9330866273
10144005430
1174318458
1240288586
1323ab051a
14151a8182
15c998420
hex8955936

144005430 has 32 divisors (see below), whose sum is σ = 351475200. Its totient is φ = 37750112.

The previous prime is 144005423. The next prime is 144005441. The reversal of 144005430 is 34500441.

It is a nialpdrome in base 15.

It is a junction number, because it is equal to n+sod(n) for n = 144005397 and 144005406.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 38910 + ... + 42449.

It is an arithmetic number, because the mean of its divisors is an integer number (10983600).

Almost surely, 2144005430 is an apocalyptic number.

144005430 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

144005430 is an abundant number, since it is smaller than the sum of its proper divisors (207469770).

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

144005430 is a wasteful number, since it uses less digits than its factorization.

144005430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81428.

The product of its (nonzero) digits is 960, while the sum is 21.

The square root of 144005430 is about 12000.2262478672. The cubic root of 144005430 is about 524.1548670116.

Adding to 144005430 its reverse (34500441), we get a palindrome (178505871).

The spelling of 144005430 in words is "one hundred forty-four million, five thousand, four hundred thirty".

Divisors: 1 2 3 5 6 10 15 30 59 118 177 295 354 590 885 1770 81359 162718 244077 406795 488154 813590 1220385 2440770 4800181 9600362 14400543 24000905 28801086 48001810 72002715 144005430