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144536271 = 3114379887
BaseRepresentation
bin10001001110101…
…11001011001111
3101001222012111020
420213113023033
5244000130041
622201525223
73403352355
oct1047271317
9331865436
10144536271
1174650270
12404a3813
1323c38029
14152a57d5
15ca50866
hex89d72cf

144536271 has 8 divisors (see below), whose sum is σ = 210234624. Its totient is φ = 87597720.

The previous prime is 144536269. The next prime is 144536279. The reversal of 144536271 is 172635441.

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

It is not a de Polignac number, because 144536271 - 21 = 144536269 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33), and also a Moran number because the ratio is a prime number: 4379887 = 144536271 / (1 + 4 + 4 + 5 + 3 + 6 + 2 + 7 + 1).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (144536279) 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, 2189911 + ... + 2189976.

It is an arithmetic number, because the mean of its divisors is an integer number (26279328).

Almost surely, 2144536271 is an apocalyptic number.

144536271 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

144536271 is a deficient number, since it is larger than the sum of its proper divisors (65698353).

144536271 is a wasteful number, since it uses less digits than its factorization.

144536271 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4379901.

The product of its digits is 20160, while the sum is 33.

The square root of 144536271 is about 12022.3238602194. The cubic root of 144536271 is about 524.7981337288.

The spelling of 144536271 in words is "one hundred forty-four million, five hundred thirty-six thousand, two hundred seventy-one".

Divisors: 1 3 11 33 4379887 13139661 48178757 144536271