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143514013 = 891612517
BaseRepresentation
bin10001000110111…
…01100110011101
3101000001021012211
420203131212131
5243214422023
622124000421
73361564126
oct1043354635
9330037184
10143514013
1174012225
1240090111
132396a946
14150bb04d
15c8eca0d
hex88dd99d

143514013 has 4 divisors (see below), whose sum is σ = 145126620. Its totient is φ = 141901408.

The previous prime is 143514001. The next prime is 143514061. The reversal of 143514013 is 310415341.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 310415341 = 2771120633.

It can be written as a sum of positive squares in 2 ways, for example, as 15665764 + 127848249 = 3958^2 + 11307^2 .

It is a cyclic number.

It is not a de Polignac number, because 143514013 - 29 = 143513501 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (143514073) 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, 806170 + ... + 806347.

It is an arithmetic number, because the mean of its divisors is an integer number (36281655).

Almost surely, 2143514013 is an apocalyptic number.

It is an amenable number.

143514013 is a deficient number, since it is larger than the sum of its proper divisors (1612607).

143514013 is an equidigital number, since it uses as much as digits as its factorization.

143514013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1612606.

The product of its (nonzero) digits is 720, while the sum is 22.

The square root of 143514013 is about 11979.7334277521. The cubic root of 143514013 is about 523.5579632149.

Adding to 143514013 its reverse (310415341), we get a palindrome (453929354).

The spelling of 143514013 in words is "one hundred forty-three million, five hundred fourteen thousand, thirteen".

Divisors: 1 89 1612517 143514013