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143049445 = 5711569653
BaseRepresentation
bin10001000011011…
…00001011100101
3100222011122221121
420201230023211
5243110040240
622110013541
73354620530
oct1041541345
9328148847
10143049445
1173825190
123baa72b1
1323837356
1414dd9a17
15c85a04a
hex886c2e5

143049445 has 32 divisors (see below), whose sum is σ = 214721280. Its totient is φ = 88880640.

The previous prime is 143049377. The next prime is 143049449. The reversal of 143049445 is 544940341.

It is not a de Polignac number, because 143049445 - 27 = 143049317 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 143049445.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (143049449) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 218739 + ... + 219391.

It is an arithmetic number, because the mean of its divisors is an integer number (6710040).

Almost surely, 2143049445 is an apocalyptic number.

It is an amenable number.

143049445 is a deficient number, since it is larger than the sum of its proper divisors (71671835).

143049445 is a wasteful number, since it uses less digits than its factorization.

143049445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1245.

The product of its (nonzero) digits is 34560, while the sum is 34.

The square root of 143049445 is about 11960.3279637308. The cubic root of 143049445 is about 522.9924175131.

Adding to 143049445 its reverse (544940341), we get a palindrome (687989786).

The spelling of 143049445 in words is "one hundred forty-three million, forty-nine thousand, four hundred forty-five".

Divisors: 1 5 7 11 35 55 77 385 569 653 2845 3265 3983 4571 6259 7183 19915 22855 31295 35915 43813 50281 219065 251405 371557 1857785 2600899 4087127 13004495 20435635 28609889 143049445