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143310331 = 1910617109
BaseRepresentation
bin10001000101010…
…11110111111011
3100222122220211001
420202223313323
5243141412311
622115345431
73360055243
oct1042536773
9328586731
10143310331
117399319a
123bbb2277
13238c9018
1415066b23
15c8ac4c1
hex88abdfb

143310331 has 8 divisors (see below), whose sum is σ = 151016400. Its totient is φ = 135620640.

The previous prime is 143310319. The next prime is 143310341. The reversal of 143310331 is 133013341.

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 143310331 - 29 = 143309819 is a prime.

It is a super-2 number, since 2×1433103312 = 41075701942659122, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 143310299 and 143310308.

It is not an unprimeable number, because it can be changed into a prime (143310301) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16605 + ... + 23713.

It is an arithmetic number, because the mean of its divisors is an integer number (18877050).

Almost surely, 2143310331 is an apocalyptic number.

143310331 is a deficient number, since it is larger than the sum of its proper divisors (7706069).

143310331 is a wasteful number, since it uses less digits than its factorization.

143310331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8189.

The product of its (nonzero) digits is 324, while the sum is 19.

The square root of 143310331 is about 11971.2293019556. The cubic root of 143310331 is about 523.3101597196.

Adding to 143310331 its reverse (133013341), we get a palindrome (276323672).

It can be divided in two parts, 143310 and 331, that added together give a square (143641 = 3792).

The spelling of 143310331 in words is "one hundred forty-three million, three hundred ten thousand, three hundred thirty-one".

Divisors: 1 19 1061 7109 20159 135071 7542649 143310331