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143445055 = 5139722751
BaseRepresentation
bin10001000110011…
…00110000111111
3100222220202121211
420203030300333
5243210220210
622122305251
73361156105
oct1043146077
9328822554
10143445055
1173a75436
1240058227
1323945440
141509dc75
15c8d738a
hex88ccc3f

143445055 has 16 divisors (see below), whose sum is σ = 187294464. Its totient is φ = 104832000.

The previous prime is 143445013. The next prime is 143445077. The reversal of 143445055 is 550544341.

It is a happy number.

143445055 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 143445055 - 223 = 135056447 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5071 + ... + 17680.

It is an arithmetic number, because the mean of its divisors is an integer number (11705904).

Almost surely, 2143445055 is an apocalyptic number.

143445055 is a deficient number, since it is larger than the sum of its proper divisors (43849409).

143445055 is a wasteful number, since it uses less digits than its factorization.

143445055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22866.

The product of its (nonzero) digits is 24000, while the sum is 31.

The square root of 143445055 is about 11976.8549711517. The cubic root of 143445055 is about 523.4740938343.

Adding to 143445055 its reverse (550544341), we get a palindrome (693989396).

The spelling of 143445055 in words is "one hundred forty-three million, four hundred forty-five thousand, fifty-five".

Divisors: 1 5 13 65 97 485 1261 6305 22751 113755 295763 1478815 2206847 11034235 28689011 143445055