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150032231 = 257583783
BaseRepresentation
bin10001111000101…
…00111101100111
3101110022102112022
420330110331213
5301402012411
622515413355
73501152516
oct1074247547
9343272468
10150032231
1177764488
12422b425b
132511078b
1415cd667d
15d288edb
hex8f14f67

150032231 has 4 divisors (see below), whose sum is σ = 150616272. Its totient is φ = 149448192.

The previous prime is 150032171. The next prime is 150032237. The reversal of 150032231 is 132230051.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 132230051 = 449294499.

It is a cyclic number.

It is not a de Polignac number, because 150032231 - 226 = 82923367 is a prime.

It is a super-2 number, since 2×1500322312 = 45019340677674722, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (150032237) 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, 291635 + ... + 292148.

It is an arithmetic number, because the mean of its divisors is an integer number (37654068).

Almost surely, 2150032231 is an apocalyptic number.

150032231 is a deficient number, since it is larger than the sum of its proper divisors (584041).

150032231 is an equidigital number, since it uses as much as digits as its factorization.

150032231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 584040.

The product of its (nonzero) digits is 180, while the sum is 17.

The square root of 150032231 is about 12248.7644683045. The cubic root of 150032231 is about 531.3673380307.

Adding to 150032231 its reverse (132230051), we get a palindrome (282262282).

The spelling of 150032231 in words is "one hundred fifty million, thirty-two thousand, two hundred thirty-one".

Divisors: 1 257 583783 150032231