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150811231 is a prime number
BaseRepresentation
bin10001111110100…
…11001001011111
3101111210000010011
420333103021133
5302101424411
622544224051
73510605614
oct1077231137
9344700104
10150811231
117814678a
124260b027
132532421c
141605a50b
15d38ec21
hex8fd325f

150811231 has 2 divisors, whose sum is σ = 150811232. Its totient is φ = 150811230.

The previous prime is 150811163. The next prime is 150811289. The reversal of 150811231 is 132118051.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 150811231 - 227 = 16593503 is a prime.

It is a super-2 number, since 2×1508112312 = 45488054791470722, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (150811291) 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 as a sum of consecutive naturals, namely, 75405615 + 75405616.

It is an arithmetic number, because the mean of its divisors is an integer number (75405616).

Almost surely, 2150811231 is an apocalyptic number.

150811231 is a deficient number, since it is larger than the sum of its proper divisors (1).

150811231 is an equidigital number, since it uses as much as digits as its factorization.

150811231 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 240, while the sum is 22.

The square root of 150811231 is about 12280.5224237408. The cubic root of 150811231 is about 532.2854092104.

Adding to 150811231 its reverse (132118051), we get a palindrome (282929282).

The spelling of 150811231 in words is "one hundred fifty million, eight hundred eleven thousand, two hundred thirty-one".