Search a number
-
+
143851093 = 1715753897
BaseRepresentation
bin10001001001011…
…11111001010101
3101000200101121021
420210233321111
5243311213333
622135121141
73364466641
oct1044577125
9330611537
10143851093
1174222501
12402131b1
1323a581b9
1415167c21
15c96782d
hex892fe55

143851093 has 8 divisors (see below), whose sum is σ = 153285912. Its totient is φ = 134524416.

The previous prime is 143851091. The next prime is 143851117. The reversal of 143851093 is 390158341.

It can be written as a sum of positive squares in 4 ways, for example, as 40666129 + 103184964 = 6377^2 + 10158^2 .

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 143851093 - 21 = 143851091 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (143851091) 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, 24280 + ... + 29617.

It is an arithmetic number, because the mean of its divisors is an integer number (19160739).

Almost surely, 2143851093 is an apocalyptic number.

It is an amenable number.

143851093 is a deficient number, since it is larger than the sum of its proper divisors (9434819).

143851093 is a wasteful number, since it uses less digits than its factorization.

143851093 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54071.

The product of its (nonzero) digits is 12960, while the sum is 34.

The square root of 143851093 is about 11993.7939368658. The cubic root of 143851093 is about 523.9675467440.

The spelling of 143851093 in words is "one hundred forty-three million, eight hundred fifty-one thousand, ninety-three".

Divisors: 1 17 157 2669 53897 916249 8461829 143851093