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143049137 = 71115711833
BaseRepresentation
bin10001000011011…
…00000110110001
3100222011122112012
420201230012301
5243110033022
622110012305
73354616610
oct1041540661
9328148465
10143049137
1173824a30
123baa7095
132383717a
1414dd9877
15c859de2
hex886c1b1

143049137 has 16 divisors (see below), whose sum is σ = 179498112. Its totient is φ = 110747520.

The previous prime is 143049133. The next prime is 143049143. The reversal of 143049137 is 731940341.

It is a cyclic number.

It is not a de Polignac number, because 143049137 - 22 = 143049133 is a prime.

It is a super-3 number, since 3×1430491373 (a number of 25 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (143049133) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6173 + ... + 18005.

It is an arithmetic number, because the mean of its divisors is an integer number (11218632).

Almost surely, 2143049137 is an apocalyptic number.

It is an amenable number.

143049137 is a deficient number, since it is larger than the sum of its proper divisors (36448975).

143049137 is a wasteful number, since it uses less digits than its factorization.

143049137 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12008.

The product of its (nonzero) digits is 9072, while the sum is 32.

The square root of 143049137 is about 11960.3150878227. The cubic root of 143049137 is about 522.9920421608.

Adding to 143049137 its reverse (731940341), we get a palindrome (874989478).

The spelling of 143049137 in words is "one hundred forty-three million, forty-nine thousand, one hundred thirty-seven".

Divisors: 1 7 11 77 157 1099 1727 11833 12089 82831 130163 911141 1857781 13004467 20435591 143049137