Search a number
-
+
143162023 = 211678493
BaseRepresentation
bin10001000100001…
…11101010100111
3100222101101101011
420202013222213
5243122141043
622112243051
73355566664
oct1042075247
9328341334
10143162023
11738a1824
123bb40487
1323876674
1415028a6b
15c87d59d
hex8887aa7

143162023 has 4 divisors (see below), whose sum is σ = 143840728. Its totient is φ = 142483320.

The previous prime is 143162011. The next prime is 143162027. The reversal of 143162023 is 320261341.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 320261341 = 3110331011.

It is a cyclic number.

It is not a de Polignac number, because 143162023 - 29 = 143161511 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 143161985 and 143162003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (143162027) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 339036 + ... + 339457.

It is an arithmetic number, because the mean of its divisors is an integer number (35960182).

Almost surely, 2143162023 is an apocalyptic number.

143162023 is a deficient number, since it is larger than the sum of its proper divisors (678705).

143162023 is an equidigital number, since it uses as much as digits as its factorization.

143162023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 678704.

The product of its (nonzero) digits is 864, while the sum is 22.

The square root of 143162023 is about 11965.0333472164. The cubic root of 143162023 is about 523.1295775509.

The spelling of 143162023 in words is "one hundred forty-three million, one hundred sixty-two thousand, twenty-three".

Divisors: 1 211 678493 143162023