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143024399 = 752139217
BaseRepresentation
bin10001000011001…
…10000100001111
3100222010101120222
420201212010033
5243103240044
622105301555
73354454520
oct1041460417
9328111528
10143024399
1173808391
123ba948bb
1323828b2b
1414dd0847
15c8528ee
hex886610f

143024399 has 8 divisors (see below), whose sum is σ = 163774368. Its totient is φ = 122353920.

The previous prime is 143024389. The next prime is 143024423. The reversal of 143024399 is 993420341.

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 143024399 - 216 = 142958863 is a prime.

It is a super-2 number, since 2×1430243992 = 40911957418622402, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (143024339) 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 7 ways as a sum of consecutive naturals, for example, 15962 + ... + 23255.

It is an arithmetic number, because the mean of its divisors is an integer number (20471796).

Almost surely, 2143024399 is an apocalyptic number.

143024399 is a deficient number, since it is larger than the sum of its proper divisors (20749969).

143024399 is an equidigital number, since it uses as much as digits as its factorization.

143024399 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39745.

The product of its (nonzero) digits is 23328, while the sum is 35.

The square root of 143024399 is about 11959.2808730291. The cubic root of 143024399 is about 522.9618927934.

The spelling of 143024399 in words is "one hundred forty-three million, twenty-four thousand, three hundred ninety-nine".

Divisors: 1 7 521 3647 39217 274519 20432057 143024399