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143312245 = 550356983
BaseRepresentation
bin10001000101011…
…00010101110101
3100222200000102221
420202230111311
5243141442440
622115402341
73360063646
oct1042542565
9328600387
10143312245
117399467a
123bbb33b1
13238c9b5b
14150676cd
15c8acd4a
hex88ac575

143312245 has 8 divisors (see below), whose sum is σ = 172319616. Its totient is φ = 114419856.

The previous prime is 143312237. The next prime is 143312341. The reversal of 143312245 is 542213341.

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 143312245 - 23 = 143312237 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25977 + ... + 31006.

It is an arithmetic number, because the mean of its divisors is an integer number (21539952).

Almost surely, 2143312245 is an apocalyptic number.

It is an amenable number.

143312245 is a deficient number, since it is larger than the sum of its proper divisors (29007371).

143312245 is an equidigital number, since it uses as much as digits as its factorization.

143312245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57491.

The product of its digits is 2880, while the sum is 25.

The square root of 143312245 is about 11971.3092433535. The cubic root of 143312245 is about 523.3124894218.

Adding to 143312245 its reverse (542213341), we get a palindrome (685525586).

The spelling of 143312245 in words is "one hundred forty-three million, three hundred twelve thousand, two hundred forty-five".

Divisors: 1 5 503 2515 56983 284915 28662449 143312245