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143032055 = 5237731609
BaseRepresentation
bin10001000011001…
…11111011110111
3100222010210002112
420201213323313
5243104011210
622105401235
73354516035
oct1041477367
9328123075
10143032055
1173813111
123ba9921b
132382c46a
1414dd3555
15c854d05
hex8867ef7

143032055 has 16 divisors (see below), whose sum is σ = 179444160. Its totient is φ = 109241088.

The previous prime is 143032027. The next prime is 143032063. The reversal of 143032055 is 550230341.

It is a cyclic number.

It is not a de Polignac number, because 143032055 - 226 = 75923191 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is a self number, because there is not a number n which added to its sum of digits gives 143032055.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 88091 + ... + 89699.

It is an arithmetic number, because the mean of its divisors is an integer number (11215260).

Almost surely, 2143032055 is an apocalyptic number.

143032055 is a deficient number, since it is larger than the sum of its proper divisors (36412105).

143032055 is a wasteful number, since it uses less digits than its factorization.

143032055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2410.

The product of its (nonzero) digits is 1800, while the sum is 23.

The square root of 143032055 is about 11959.6009548814. The cubic root of 143032055 is about 522.9712238931.

Adding to 143032055 its reverse (550230341), we get a palindrome (693262396).

The spelling of 143032055 in words is "one hundred forty-three million, thirty-two thousand, fifty-five".

Divisors: 1 5 23 115 773 1609 3865 8045 17779 37007 88895 185035 1243757 6218785 28606411 143032055