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144204223 = 1039771433
BaseRepresentation
bin10001001100001…
…10000110111111
3101001100100000011
420212012012333
5243404013343
622150444051
73400500322
oct1046060677
9331310004
10144204223
1174443849
1240363627
1323b4cb57
141521a7b9
15c9d729d
hex89861bf

144204223 has 8 divisors (see below), whose sum is σ = 145855008. Its totient is φ = 142558464.

The previous prime is 144204199. The next prime is 144204259. The reversal of 144204223 is 322402441.

It is a happy number.

144204223 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 144204223 - 25 = 144204191 is a prime.

It is a Duffinian number.

144204223 is a modest number, since divided by 4223 gives 1442 as remainder.

It is a junction number, because it is equal to n+sod(n) for n = 144204194 and 144204203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (144204023) 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, 99915 + ... + 101347.

It is an arithmetic number, because the mean of its divisors is an integer number (18231876).

Almost surely, 2144204223 is an apocalyptic number.

144204223 is a deficient number, since it is larger than the sum of its proper divisors (1650785).

144204223 is a wasteful number, since it uses less digits than its factorization.

144204223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2513.

The product of its (nonzero) digits is 1536, while the sum is 22.

The square root of 144204223 is about 12008.5062768023. The cubic root of 144204223 is about 524.3959468288.

Adding to 144204223 its reverse (322402441), we get a palindrome (466606664).

The spelling of 144204223 in words is "one hundred forty-four million, two hundred four thousand, two hundred twenty-three".

Divisors: 1 103 977 1433 100631 147599 1400041 144204223