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143000143 = 11131019901
BaseRepresentation
bin10001000011000…
…00001001001111
3100222002011022121
420201200021033
5243102001033
622104553411
73354324016
oct1041401117
9328064277
10143000143
11737a1140
123ba82867
132381aa90
1414dc5a7d
15c84a62d
hex886024f

143000143 has 16 divisors (see below), whose sum is σ = 169680672. Its totient is φ = 118800000.

The previous prime is 143000113. The next prime is 143000147. The reversal of 143000143 is 341000341.

It is a de Polignac number, because none of the positive numbers 2k-143000143 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (143000147) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9493 + ... + 19393.

It is an arithmetic number, because the mean of its divisors is an integer number (10605042).

Almost surely, 2143000143 is an apocalyptic number.

143000143 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

143000143 is a deficient number, since it is larger than the sum of its proper divisors (26680529).

143000143 is a wasteful number, since it uses less digits than its factorization.

143000143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10026.

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 143000143 is about 11958.2667222303. The cubic root of 143000143 is about 522.9323274863.

Adding to 143000143 its reverse (341000341), we get a palindrome (484000484).

The spelling of 143000143 in words is "one hundred forty-three million, one hundred forty-three", and thus it is an aban number.

Divisors: 1 11 13 101 143 1111 1313 9901 14443 108911 128713 1000001 1415843 11000011 13000013 143000143