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143020314 = 2327945573
BaseRepresentation
bin10001000011001…
…01000100011010
3100222010011222200
420201211010122
5243103122224
622105231030
73354436563
oct1041450432
9328104880
10143020314
1173805308
123ba92476
1323827008
1414dcd16a
15c8515c9
hex886511a

143020314 has 12 divisors (see below), whose sum is σ = 309877386. Its totient is φ = 47673432.

The previous prime is 143020313. The next prime is 143020321. The reversal of 143020314 is 413020341.

It can be written as a sum of positive squares in only one way, i.e., 115928289 + 27092025 = 10767^2 + 5205^2 .

It is a Harshad number since it is a multiple of its sum of digits (18), and also a Moran number because the ratio is a prime number: 7945573 = 143020314 / (1 + 4 + 3 + 0 + 2 + 0 + 3 + 1 + 4).

It is not an unprimeable number, because it can be changed into a prime (143020313) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3972769 + ... + 3972804.

Almost surely, 2143020314 is an apocalyptic number.

143020314 is an abundant number, since it is smaller than the sum of its proper divisors (166857072).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

143020314 is a wasteful number, since it uses less digits than its factorization.

143020314 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7945581 (or 7945578 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 143020314 is about 11959.1100839486. The cubic root of 143020314 is about 522.9569138767.

Adding to 143020314 its reverse (413020341), we get a palindrome (556040655).

The spelling of 143020314 in words is "one hundred forty-three million, twenty thousand, three hundred fourteen".

Divisors: 1 2 3 6 9 18 7945573 15891146 23836719 47673438 71510157 143020314