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144403214 = 272201607
BaseRepresentation
bin10001001101101…
…10101100001110
3101001201102222012
420212312230032
5243431400324
622155021222
73402256424
oct1046665416
9331642865
10144403214
117456a2aa
124043a812
1323bbc5b7
141526d114
15ca2620e
hex89b6b0e

144403214 has 4 divisors (see below), whose sum is σ = 216604824. Its totient is φ = 72201606.

The previous prime is 144403213. The next prime is 144403229. The reversal of 144403214 is 412304441.

It is a happy number.

144403214 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 412304441 = 1392966219.

It is a self number, because there is not a number n which added to its sum of digits gives 144403214.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (144403213) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36100802 + ... + 36100805.

It is an arithmetic number, because the mean of its divisors is an integer number (54151206).

Almost surely, 2144403214 is an apocalyptic number.

144403214 is a deficient number, since it is larger than the sum of its proper divisors (72201610).

144403214 is an equidigital number, since it uses as much as digits as its factorization.

144403214 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72201609.

The product of its (nonzero) digits is 1536, while the sum is 23.

The square root of 144403214 is about 12016.7888389536. The cubic root of 144403214 is about 524.6370449742.

Adding to 144403214 its reverse (412304441), we get a palindrome (556707655).

The spelling of 144403214 in words is "one hundred forty-four million, four hundred three thousand, two hundred fourteen".

Divisors: 1 2 72201607 144403214