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143628145 = 553541993
BaseRepresentation
bin10001000111110…
…01011101110001
3101000021001202221
420203321131301
5243232100040
622130241041
73362550643
oct1043713561
9330231687
10143628145
117408aa51
1240126181
13239aa88b
141510a893
15c92174a
hex88f9771

143628145 has 8 divisors (see below), whose sum is σ = 175606056. Its totient is φ = 112734336.

The previous prime is 143628139. The next prime is 143628151. The reversal of 143628145 is 541826341.

It is an interprime number because it is at equal distance from previous prime (143628139) and next prime (143628151).

It can be written as a sum of positive squares in 4 ways, for example, as 4765489 + 138862656 = 2183^2 + 11784^2 .

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 143628145 - 23 = 143628137 is a prime.

It is a super-2 number, since 2×1436281452 = 41258088072282050, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 143628145.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 270732 + ... + 271261.

It is an arithmetic number, because the mean of its divisors is an integer number (21950757).

Almost surely, 2143628145 is an apocalyptic number.

It is an amenable number.

143628145 is a deficient number, since it is larger than the sum of its proper divisors (31977911).

143628145 is an equidigital number, since it uses as much as digits as its factorization.

143628145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 542051.

The product of its digits is 23040, while the sum is 34.

The square root of 143628145 is about 11984.4960261164. The cubic root of 143628145 is about 523.6967159468.

The spelling of 143628145 in words is "one hundred forty-three million, six hundred twenty-eight thousand, one hundred forty-five".

Divisors: 1 5 53 265 541993 2709965 28725629 143628145