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143000493 = 347666831
BaseRepresentation
bin10001000011000…
…00001110101101
3100222002011210120
420201200032231
5243102003433
622104555153
73354325026
oct1041401655
9328064716
10143000493
11737a1429
123ba82ab9
132381ac9c
1414dc5c4d
15c84a7b3
hex88603ad

143000493 has 4 divisors (see below), whose sum is σ = 190667328. Its totient is φ = 95333660.

The previous prime is 143000401. The next prime is 143000513. The reversal of 143000493 is 394000341.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 143000493 - 214 = 142984109 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (143050493) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 23833413 + ... + 23833418.

It is an arithmetic number, because the mean of its divisors is an integer number (47666832).

Almost surely, 2143000493 is an apocalyptic number.

It is an amenable number.

143000493 is a deficient number, since it is larger than the sum of its proper divisors (47666835).

143000493 is an equidigital number, since it uses as much as digits as its factorization.

143000493 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47666834.

The product of its (nonzero) digits is 1296, while the sum is 24.

The square root of 143000493 is about 11958.2813564492. The cubic root of 143000493 is about 522.9327541202.

The spelling of 143000493 in words is "one hundred forty-three million, four hundred ninety-three", and thus it is an aban number.

Divisors: 1 3 47666831 143000493