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144289033 = 7131157349
BaseRepresentation
bin10001001100110…
…10110100001001
3101001111122100021
420212122310021
5243414222113
622152340441
73401302510
oct1046326411
9331448307
10144289033
11744a1539
12403a4721
1323b7c635
141523d677
15ca0248d
hex899ad09

144289033 has 8 divisors (see below), whose sum is σ = 166161600. Its totient is φ = 122731440.

The previous prime is 144289031. The next prime is 144289039. The reversal of 144289033 is 330982441.

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 144289033 - 21 = 144289031 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 144289033.

It is not an unprimeable number, because it can be changed into a prime (144289031) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 77758 + ... + 79591.

It is an arithmetic number, because the mean of its divisors is an integer number (20770200).

Almost surely, 2144289033 is an apocalyptic number.

It is an amenable number.

144289033 is a deficient number, since it is larger than the sum of its proper divisors (21872567).

144289033 is a wasteful number, since it uses less digits than its factorization.

144289033 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 157487.

The product of its (nonzero) digits is 20736, while the sum is 34.

The square root of 144289033 is about 12012.0370046050. The cubic root of 144289033 is about 524.4987300053.

The spelling of 144289033 in words is "one hundred forty-four million, two hundred eighty-nine thousand, thirty-three".

Divisors: 1 7 131 917 157349 1101443 20612719 144289033