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144145005 = 3547204461
BaseRepresentation
bin10001001011101…
…11101001101101
3101001020022202220
420211313221231
5243400120010
622145305553
73400132554
oct1045675155
9331208686
10144145005
1174403304
12403352b9
1323b2bc04
1415202d9b
15c9c4970
hex8977a6d

144145005 has 16 divisors (see below), whose sum is σ = 235540224. Its totient is φ = 75241280.

The previous prime is 144144977. The next prime is 144145061. The reversal of 144145005 is 500541441.

It is a happy number.

It is not a de Polignac number, because 144145005 - 210 = 144143981 is a prime.

It is a Curzon number.

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, 101526 + ... + 102935.

It is an arithmetic number, because the mean of its divisors is an integer number (14721264).

Almost surely, 2144145005 is an apocalyptic number.

144145005 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

144145005 is a deficient number, since it is larger than the sum of its proper divisors (91395219).

144145005 is a wasteful number, since it uses less digits than its factorization.

144145005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 204516.

The product of its (nonzero) digits is 1600, while the sum is 24.

The square root of 144145005 is about 12006.0403547548. The cubic root of 144145005 is about 524.3241552860.

Adding to 144145005 its reverse (500541441), we get a palindrome (644686446).

The spelling of 144145005 in words is "one hundred forty-four million, one hundred forty-five thousand, five".

Divisors: 1 3 5 15 47 141 235 705 204461 613383 1022305 3066915 9609667 28829001 48048335 144145005