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144968159 = 7106919373
BaseRepresentation
bin10001010010000…
…00100111011111
3101002210010221002
420221000213133
5244102440114
622215100515
73410131460
oct1051004737
9332703832
10144968159
11749157a6
124067173b
132405979b
1415378d67
15cad87de
hex8a409df

144968159 has 8 divisors (see below), whose sum is σ = 165841440. Its totient is φ = 124135776.

The previous prime is 144968107. The next prime is 144968177. The reversal of 144968159 is 951869441.

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 144968159 - 216 = 144902623 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (144968189) 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, 2204 + ... + 17169.

It is an arithmetic number, because the mean of its divisors is an integer number (20730180).

Almost surely, 2144968159 is an apocalyptic number.

144968159 is a deficient number, since it is larger than the sum of its proper divisors (20873281).

144968159 is a wasteful number, since it uses less digits than its factorization.

144968159 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20449.

The product of its digits is 311040, while the sum is 47.

The square root of 144968159 is about 12040.2723806399. The cubic root of 144968159 is about 525.3203293786.

The spelling of 144968159 in words is "one hundred forty-four million, nine hundred sixty-eight thousand, one hundred fifty-nine".

Divisors: 1 7 1069 7483 19373 135611 20709737 144968159