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150230801 = 721461543
BaseRepresentation
bin10001111010001…
…01011100010001
3101110200111220202
420331011130101
5301424341201
622523544545
73502640450
oct1075053421
9343614822
10150230801
117788a696
124238b155
132517cc86
1415d48b97
15d2c7c6b
hex8f45711

150230801 has 4 divisors (see below), whose sum is σ = 171692352. Its totient is φ = 128769252.

The previous prime is 150230789. The next prime is 150230807. The reversal of 150230801 is 108032051.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 108032051 = 139777209.

It is a cyclic number.

It is not a de Polignac number, because 150230801 - 26 = 150230737 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (150230807) 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, 10730765 + ... + 10730778.

It is an arithmetic number, because the mean of its divisors is an integer number (42923088).

Almost surely, 2150230801 is an apocalyptic number.

It is an amenable number.

150230801 is a deficient number, since it is larger than the sum of its proper divisors (21461551).

150230801 is an equidigital number, since it uses as much as digits as its factorization.

150230801 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21461550.

The product of its (nonzero) digits is 240, while the sum is 20.

The square root of 150230801 is about 12256.8675035671. The cubic root of 150230801 is about 531.6016590078.

Adding to 150230801 its reverse (108032051), we get a palindrome (258262852).

The spelling of 150230801 in words is "one hundred fifty million, two hundred thirty thousand, eight hundred one".

Divisors: 1 7 21461543 150230801