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144232243 = 316189857
BaseRepresentation
bin10001001100011…
…00111100110011
3101001101202102221
420212030330303
5243410412433
622151221511
73400645111
oct1046147463
9331352387
10144232243
1174462901
1240377897
1323b5c82c
1415226ab1
15c9e072d
hex898cf33

144232243 has 16 divisors (see below), whose sum is σ = 153204480. Its totient is φ = 135590400.

The previous prime is 144232213. The next prime is 144232247. The reversal of 144232243 is 342232441.

It is a happy number.

144232243 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-144232243 is a prime.

It is a super-2 number, since 2×1442322432 = 41605879841622098, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (144232247) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 167871 + ... + 168727.

It is an arithmetic number, because the mean of its divisors is an integer number (9575280).

Almost surely, 2144232243 is an apocalyptic number.

144232243 is a deficient number, since it is larger than the sum of its proper divisors (8972237).

144232243 is an equidigital number, since it uses as much as digits as its factorization.

144232243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1038.

The product of its digits is 4608, while the sum is 25.

The square root of 144232243 is about 12009.6728931308. The cubic root of 144232243 is about 524.4299093636.

Adding to 144232243 its reverse (342232441), we get a palindrome (486464684).

The spelling of 144232243 in words is "one hundred forty-four million, two hundred thirty-two thousand, two hundred forty-three".

Divisors: 1 31 61 89 857 1891 2759 5429 26567 52277 76273 168299 1620587 2364463 4652653 144232243