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144145214 = 272072607
BaseRepresentation
bin10001001011101…
…11101100111110
3101001020100001122
420211313230332
5243400121324
622145310542
73400133303
oct1045675476
9331210048
10144145214
1174403484
1240335452
1323b2c035
14152030aa
15c9c4a5e
hex8977b3e

144145214 has 4 divisors (see below), whose sum is σ = 216217824. Its totient is φ = 72072606.

The previous prime is 144145151. The next prime is 144145219. The reversal of 144145214 is 412541441.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (144145219) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36036302 + ... + 36036305.

It is an arithmetic number, because the mean of its divisors is an integer number (54054456).

Almost surely, 2144145214 is an apocalyptic number.

144145214 is a deficient number, since it is larger than the sum of its proper divisors (72072610).

144145214 is an equidigital number, since it uses as much as digits as its factorization.

144145214 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72072609.

The product of its digits is 2560, while the sum is 26.

The square root of 144145214 is about 12006.0490587037. The cubic root of 144145214 is about 524.3244086968.

Adding to 144145214 its reverse (412541441), we get a palindrome (556686655).

The spelling of 144145214 in words is "one hundred forty-four million, one hundred forty-five thousand, two hundred fourteen".

Divisors: 1 2 72072607 144145214