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144163733 = 723194907
BaseRepresentation
bin10001001011111…
…00001110010101
3101001021021110112
420211330032111
5243401214413
622145532405
73400241300
oct1045741625
9331237415
10144163733
117441638a
1240344105
1323b375ac
1415209b37
15c9ca2a8
hex897c395

144163733 has 12 divisors (see below), whose sum is σ = 173112192. Its totient is φ = 119581560.

The previous prime is 144163717. The next prime is 144163741. The reversal of 144163733 is 337361441.

144163733 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 144163733 - 24 = 144163717 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 144163733.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (144163753) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 45935 + ... + 48972.

It is an arithmetic number, because the mean of its divisors is an integer number (14426016).

Almost surely, 2144163733 is an apocalyptic number.

It is an amenable number.

144163733 is a deficient number, since it is larger than the sum of its proper divisors (28948459).

144163733 is an equidigital number, since it uses as much as digits as its factorization.

144163733 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 94952 (or 94945 counting only the distinct ones).

The product of its digits is 18144, while the sum is 32.

The square root of 144163733 is about 12006.8202701631. The cubic root of 144163733 is about 524.3468618597.

The spelling of 144163733 in words is "one hundred forty-four million, one hundred sixty-three thousand, seven hundred thirty-three".

Divisors: 1 7 31 49 217 1519 94907 664349 2942117 4650443 20594819 144163733