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143000669 = 7219269571
BaseRepresentation
bin10001000011000…
…00010001011101
3100222002012001002
420201200101131
5243102010134
622105000045
73354325400
oct1041402135
9328065032
10143000669
11737a1579
123ba83025
132381b0a6
1414dc5d37
15c84a87e
hex886045d

143000669 has 24 divisors (see below), whose sum is σ = 176061600. Its totient is φ = 115486560.

The previous prime is 143000659. The next prime is 143000677. The reversal of 143000669 is 966000341.

It is not a de Polignac number, because 143000669 - 212 = 142996573 is a prime.

It is a super-2 number, since 2×1430006692 = 40898382668895122, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (143000609) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 250154 + ... + 250724.

It is an arithmetic number, because the mean of its divisors is an integer number (7335900).

Almost surely, 2143000669 is an apocalyptic number.

143000669 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

It is an amenable number.

143000669 is a deficient number, since it is larger than the sum of its proper divisors (33060931).

143000669 is a wasteful number, since it uses less digits than its factorization.

143000669 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 873 (or 866 counting only the distinct ones).

The product of its (nonzero) digits is 3888, while the sum is 29.

The square root of 143000669 is about 11958.2887153639. The cubic root of 143000669 is about 522.9329686559.

The spelling of 143000669 in words is "one hundred forty-three million, six hundred sixty-nine", and thus it is an aban number.

Divisors: 1 7 19 49 133 269 571 931 1883 3997 5111 10849 13181 27979 35777 75943 153599 250439 531601 1075193 2918381 7526351 20428667 143000669