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144463306 = 2139975573
BaseRepresentation
bin10001001110001…
…01010111001010
3101001211111101211
420213011113022
5243440311211
622200203334
73402626551
oct1047052712
9331744354
10144463306
1174600469
124046954a
1323c10a60
1415286d98
15ca38e21
hex89c55ca

144463306 has 16 divisors (see below), whose sum is σ = 233639784. Its totient is φ = 66596544.

The previous prime is 144463303. The next prime is 144463307. The reversal of 144463306 is 603364441.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 88078225 + 56385081 = 9385^2 + 7509^2 .

It is not an unprimeable number, because it can be changed into a prime (144463303) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 23136 + ... + 28708.

Almost surely, 2144463306 is an apocalyptic number.

144463306 is a deficient number, since it is larger than the sum of its proper divisors (89176478).

144463306 is a wasteful number, since it uses less digits than its factorization.

144463306 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6585.

The product of its (nonzero) digits is 20736, while the sum is 31.

The square root of 144463306 is about 12019.2889140747. The cubic root of 144463306 is about 524.7098090914.

The spelling of 144463306 in words is "one hundred forty-four million, four hundred sixty-three thousand, three hundred six".

Divisors: 1 2 13 26 997 1994 5573 11146 12961 25922 72449 144898 5556281 11112562 72231653 144463306