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148538543 = 831789621
BaseRepresentation
bin10001101101010…
…00010010101111
3101100111112120112
420312220102233
5301011213133
622423410235
73452361656
oct1066502257
9340445515
10148538543
117693422a
12418b397b
1324a0993a
1415a2819d
15d091648
hex8da84af

148538543 has 4 divisors (see below), whose sum is σ = 150328248. Its totient is φ = 146748840.

The previous prime is 148538527. The next prime is 148538569. The reversal of 148538543 is 345835841.

148538543 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 345835841 = 1326602757.

It is a cyclic number.

It is not a de Polignac number, because 148538543 - 24 = 148538527 is a prime.

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 148538543.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (148538513) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 894728 + ... + 894893.

It is an arithmetic number, because the mean of its divisors is an integer number (37582062).

Almost surely, 2148538543 is an apocalyptic number.

148538543 is a deficient number, since it is larger than the sum of its proper divisors (1789705).

148538543 is an equidigital number, since it uses as much as digits as its factorization.

148538543 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1789704.

The product of its digits is 230400, while the sum is 41.

The square root of 148538543 is about 12187.6389427977. The cubic root of 148538543 is about 529.5980612233.

The spelling of 148538543 in words is "one hundred forty-eight million, five hundred thirty-eight thousand, five hundred forty-three".

Divisors: 1 83 1789621 148538543