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144849263 = 1311142251
BaseRepresentation
bin10001010001000…
…11100101101111
3101002120002211112
420220203211233
5244040134023
622212342235
73406125026
oct1050434557
9332502745
10144849263
1174844439
124061497b
1324017630
14153478bd
15cab3478
hex8a2396f

144849263 has 4 divisors (see below), whose sum is σ = 155991528. Its totient is φ = 133707000.

The previous prime is 144849233. The next prime is 144849277. The reversal of 144849263 is 362948441.

144849263 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 144849263 - 212 = 144845167 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 144849263.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (144849223) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5571113 + ... + 5571138.

It is an arithmetic number, because the mean of its divisors is an integer number (38997882).

Almost surely, 2144849263 is an apocalyptic number.

144849263 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

144849263 is a deficient number, since it is larger than the sum of its proper divisors (11142265).

144849263 is a wasteful number, since it uses less digits than its factorization.

144849263 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11142264.

The product of its digits is 165888, while the sum is 41.

The square root of 144849263 is about 12035.3339380343. Note that the first 3 decimals coincide. The cubic root of 144849263 is about 525.1766758360.

The spelling of 144849263 in words is "one hundred forty-four million, eight hundred forty-nine thousand, two hundred sixty-three".

Divisors: 1 13 11142251 144849263