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143005045 = 561468869
BaseRepresentation
bin10001000011000…
…01010101110101
3100222002102001011
420201201111311
5243102130140
622105032221
73354344221
oct1041412565
9328072034
10143005045
11737a4897
123ba85671
1323820091
1414dc7781
15c84bcea
hex8861575

143005045 has 8 divisors (see below), whose sum is σ = 174419640. Its totient is φ = 112528320.

The previous prime is 143005043. The next prime is 143005073. The reversal of 143005045 is 540500341.

It can be written as a sum of positive squares in 4 ways, for example, as 3363556 + 139641489 = 1834^2 + 11817^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 143005045 - 21 = 143005043 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (143005043) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 234130 + ... + 234739.

It is an arithmetic number, because the mean of its divisors is an integer number (21802455).

Almost surely, 2143005045 is an apocalyptic number.

It is an amenable number.

143005045 is a deficient number, since it is larger than the sum of its proper divisors (31414595).

143005045 is an equidigital number, since it uses as much as digits as its factorization.

143005045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 468935.

The product of its (nonzero) digits is 1200, while the sum is 22.

The square root of 143005045 is about 11958.4716832880. The cubic root of 143005045 is about 522.9383027366.

Adding to 143005045 its reverse (540500341), we get a palindrome (683505386).

The spelling of 143005045 in words is "one hundred forty-three million, five thousand, forty-five".

Divisors: 1 5 61 305 468869 2344345 28601009 143005045