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143023055 = 574086373
BaseRepresentation
bin10001000011001…
…01101111001111
3100222010022202012
420201211233033
5243103214210
622105251435
73354450560
oct1041455717
9328108665
10143023055
117380737a
123ba93b7b
1323828336
1414dd0167
15c852305
hex8865bcf

143023055 has 8 divisors (see below), whose sum is σ = 196145952. Its totient is φ = 98072928.

The previous prime is 143023043. The next prime is 143023061. The reversal of 143023055 is 550320341.

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

It is a cyclic number.

It is not a de Polignac number, because 143023055 - 212 = 143018959 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 143023055.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2043152 + ... + 2043221.

It is an arithmetic number, because the mean of its divisors is an integer number (24518244).

Almost surely, 2143023055 is an apocalyptic number.

143023055 is a deficient number, since it is larger than the sum of its proper divisors (53122897).

143023055 is an equidigital number, since it uses as much as digits as its factorization.

143023055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4086385.

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

The square root of 143023055 is about 11959.2246822275. The cubic root of 143023055 is about 522.9602546976.

Adding to 143023055 its reverse (550320341), we get a palindrome (693343396).

The spelling of 143023055 in words is "one hundred forty-three million, twenty-three thousand, fifty-five".

Divisors: 1 5 7 35 4086373 20431865 28604611 143023055