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143144 = 2329617
BaseRepresentation
bin100010111100101000
321021100122
4202330220
514040034
63022412
71134221
oct427450
9237318
10143144
1198601
126aa08
1350201
143a248
152c62e
hex22f28

143144 has 16 divisors (see below), whose sum is σ = 278100. Its totient is φ = 68992.

The previous prime is 143141. The next prime is 143159. The reversal of 143144 is 441341.

143144 = T97 + T98 + ... + T120.

It can be written as a sum of positive squares in 2 ways, for example, as 131044 + 12100 = 362^2 + 110^2 .

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 143144.

It is not an unprimeable number, because it can be changed into a prime (143141) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 77 + ... + 540.

2143144 is an apocalyptic number.

It is an amenable number.

143144 is a deficient number, since it is larger than the sum of its proper divisors (134956).

143144 is a wasteful number, since it uses less digits than its factorization.

143144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 652 (or 648 counting only the distinct ones).

The product of its digits is 192, while the sum is 17.

The square root of 143144 is about 378.3437590340. The cubic root of 143144 is about 52.3107623963.

Adding to 143144 its reverse (441341), we get a palindrome (584485).

The spelling of 143144 in words is "one hundred forty-three thousand, one hundred forty-four", and thus it is an iban number.

Divisors: 1 2 4 8 29 58 116 232 617 1234 2468 4936 17893 35786 71572 143144