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143428886 = 2479149717
BaseRepresentation
bin10001000110010…
…00110100010110
3100222212221102222
420203020310112
5243204211021
622122102342
73361061006
oct1043106426
9328787388
10143428886
1173a64277
124004a9b2
132393ac83
1415098006
15c8d26ab
hex88c8d16

143428886 has 8 divisors (see below), whose sum is σ = 215593920. Its totient is φ = 71564248.

The previous prime is 143428871. The next prime is 143428889. The reversal of 143428886 is 688824341.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (143428889) 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, 73901 + ... + 75816.

It is an arithmetic number, because the mean of its divisors is an integer number (26949240).

Almost surely, 2143428886 is an apocalyptic number.

143428886 is a deficient number, since it is larger than the sum of its proper divisors (72165034).

143428886 is a wasteful number, since it uses less digits than its factorization.

143428886 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 150198.

The product of its digits is 294912, while the sum is 44.

The square root of 143428886 is about 11976.1799418679. The cubic root of 143428886 is about 523.4544245826.

The spelling of 143428886 in words is "one hundred forty-three million, four hundred twenty-eight thousand, eight hundred eighty-six".

Divisors: 1 2 479 958 149717 299434 71714443 143428886