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147320143 = 619237997
BaseRepresentation
bin10001100011111…
…10110101001111
3101021012122020121
420301332311033
5300203221033
622341325411
73436125535
oct1061766517
9337178217
10147320143
1176181893
1241406867
13246a11a9
14157cc155
15ce0062d
hex8c7ed4f

147320143 has 4 divisors (see below), whose sum is σ = 147558760. Its totient is φ = 147081528.

The previous prime is 147320119. The next prime is 147320161. The reversal of 147320143 is 341023741.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 341023741 = 992334367.

It is a cyclic number.

It is not a de Polignac number, because 147320143 - 29 = 147319631 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 (147326143) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 118380 + ... + 119617.

It is an arithmetic number, because the mean of its divisors is an integer number (36889690).

Almost surely, 2147320143 is an apocalyptic number.

147320143 is a deficient number, since it is larger than the sum of its proper divisors (238617).

147320143 is an equidigital number, since it uses as much as digits as its factorization.

147320143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 238616.

The product of its (nonzero) digits is 2016, while the sum is 25.

The square root of 147320143 is about 12137.5509473699. The cubic root of 147320143 is about 528.1460595596.

Adding to 147320143 its reverse (341023741), we get a palindrome (488343884).

The spelling of 147320143 in words is "one hundred forty-seven million, three hundred twenty thousand, one hundred forty-three".

Divisors: 1 619 237997 147320143