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144588668 = 2277277103
BaseRepresentation
bin10001001111000…
…11111101111100
3101002001212100212
420213203331330
5244003314133
622203011552
73403661210
oct1047437574
9332055325
10144588668
1174686674
1240509bb8
1323c55b33
14152ba940
15ca61148
hex89e3f7c

144588668 has 24 divisors (see below), whose sum is σ = 289615872. Its totient is φ = 61872624.

The previous prime is 144588667. The next prime is 144588677. The reversal of 144588668 is 866885441.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (144588667) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16805 + ... + 23907.

It is an arithmetic number, because the mean of its divisors is an integer number (12067328).

Almost surely, 2144588668 is an apocalyptic number.

It is an amenable number.

144588668 is an abundant number, since it is smaller than the sum of its proper divisors (145027204).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

144588668 is a wasteful number, since it uses less digits than its factorization.

144588668 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7841 (or 7839 counting only the distinct ones).

The product of its digits is 1474560, while the sum is 50.

The square root of 144588668 is about 12024.5028171646. The cubic root of 144588668 is about 524.8615423239.

The spelling of 144588668 in words is "one hundred forty-four million, five hundred eighty-eight thousand, six hundred sixty-eight".

Divisors: 1 2 4 7 14 28 727 1454 2908 5089 7103 10178 14206 20356 28412 49721 99442 198884 5163881 10327762 20655524 36147167 72294334 144588668