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144196949 = 1322948437
BaseRepresentation
bin10001001100001…
…00010101010101
3101001022222000202
420212010111111
5243403300244
622150350245
73400440161
oct1046042525
9331288022
10144196949
1174439336
124035b385
1323b49750
1415217ca1
15c9d504e
hex8984555

144196949 has 8 divisors (see below), whose sum is σ = 155970360. Its totient is φ = 132520896.

The previous prime is 144196939. The next prime is 144196957. The reversal of 144196949 is 949691441.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 22800625 + 121396324 = 4775^2 + 11018^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 144196949 - 24 = 144196933 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (144196919) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21242 + ... + 27195.

It is an arithmetic number, because the mean of its divisors is an integer number (19496295).

Almost surely, 2144196949 is an apocalyptic number.

It is an amenable number.

144196949 is a deficient number, since it is larger than the sum of its proper divisors (11773411).

144196949 is a wasteful number, since it uses less digits than its factorization.

144196949 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48679.

The product of its digits is 279936, while the sum is 47.

The square root of 144196949 is about 12008.2034043399. The cubic root of 144196949 is about 524.3871294257.

The spelling of 144196949 in words is "one hundred forty-four million, one hundred ninety-six thousand, nine hundred forty-nine".

Divisors: 1 13 229 2977 48437 629681 11092073 144196949