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144003223 = 71319372251
BaseRepresentation
bin10001001010101…
…01000010010111
3101000222010021201
420211111002113
5243331100343
622142253331
73366002320
oct1045250227
9330863251
10144003223
1174316831
1240287247
1323aac510
14151a7447
15c99794d
hex8955097

144003223 has 32 divisors (see below), whose sum is σ = 191690240. Its totient is φ = 104976000.

The previous prime is 144003217. The next prime is 144003229. The reversal of 144003223 is 322300441.

It is an interprime number because it is at equal distance from previous prime (144003217) and next prime (144003229).

It is a cyclic number.

It is not a de Polignac number, because 144003223 - 29 = 144002711 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a self number, because there is not a number n which added to its sum of digits gives 144003223.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (144003229) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 62848 + ... + 65098.

It is an arithmetic number, because the mean of its divisors is an integer number (5990320).

Almost surely, 2144003223 is an apocalyptic number.

144003223 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

144003223 is a deficient number, since it is larger than the sum of its proper divisors (47687017).

144003223 is a wasteful number, since it uses less digits than its factorization.

144003223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2327.

The product of its (nonzero) digits is 576, while the sum is 19.

The square root of 144003223 is about 12000.1342909152. The cubic root of 144003223 is about 524.1521892985.

Adding to 144003223 its reverse (322300441), we get a palindrome (466303664).

The spelling of 144003223 in words is "one hundred forty-four million, three thousand, two hundred twenty-three".

Divisors: 1 7 13 19 37 91 133 247 259 481 703 1729 2251 3367 4921 9139 15757 29263 42769 63973 83287 204841 299383 555997 583009 1082731 1582453 3891979 7579117 11077171 20571889 144003223