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150530423 = 236544801
BaseRepresentation
bin10001111100011…
…10100101110111
3101111020201220212
420332032211313
5302013433143
622534220035
73505326131
oct1076164567
9344221825
10150530423
1177a7480a
12424b461b
1325256474
1415dc6051
15d336918
hex8f8e977

150530423 has 4 divisors (see below), whose sum is σ = 157075248. Its totient is φ = 143985600.

The previous prime is 150530411. The next prime is 150530431. The reversal of 150530423 is 324035051.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 324035051 = 1049308899.

It is a cyclic number.

It is not a de Polignac number, because 150530423 - 210 = 150529399 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (23), and also a Moran number because the ratio is a prime number: 6544801 = 150530423 / (1 + 5 + 0 + 5 + 3 + 0 + 4 + 2 + 3).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (150530623) 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, 3272378 + ... + 3272423.

It is an arithmetic number, because the mean of its divisors is an integer number (39268812).

Almost surely, 2150530423 is an apocalyptic number.

150530423 is a deficient number, since it is larger than the sum of its proper divisors (6544825).

150530423 is an equidigital number, since it uses as much as digits as its factorization.

150530423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6544824.

The product of its (nonzero) digits is 1800, while the sum is 23.

The square root of 150530423 is about 12269.0840326407. The cubic root of 150530423 is about 531.9548350958.

Adding to 150530423 its reverse (324035051), we get a palindrome (474565474).

The spelling of 150530423 in words is "one hundred fifty million, five hundred thirty thousand, four hundred twenty-three".

Divisors: 1 23 6544801 150530423