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150663145 = 530132629
BaseRepresentation
bin10001111101011…
…10111111101001
3101111111110222111
420332232333221
5302032210040
622541122321
73506421103
oct1076567751
9344443874
10150663145
11780554a6
12425593a1
13252a19b9
141601c573
15d360dea
hex8faefe9

150663145 has 4 divisors (see below), whose sum is σ = 180795780. Its totient is φ = 120530512.

The previous prime is 150663143. The next prime is 150663173. The reversal of 150663145 is 541366051.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 541366051 = 3117463421.

It can be written as a sum of positive squares in 2 ways, for example, as 15452761 + 135210384 = 3931^2 + 11628^2 .

It is a cyclic number.

It is not a de Polignac number, because 150663145 - 21 = 150663143 is a prime.

It is a super-2 number, since 2×1506631452 = 45398766522582050, which contains 22 as substring.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (150663143) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15066310 + ... + 15066319.

It is an arithmetic number, because the mean of its divisors is an integer number (45198945).

Almost surely, 2150663145 is an apocalyptic number.

It is an amenable number.

150663145 is a deficient number, since it is larger than the sum of its proper divisors (30132635).

150663145 is an equidigital number, since it uses as much as digits as its factorization.

150663145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30132634.

The product of its (nonzero) digits is 10800, while the sum is 31.

The square root of 150663145 is about 12274.4916391678. The cubic root of 150663145 is about 532.1111299021. Note that the first 4 decimals are identical.

The spelling of 150663145 in words is "one hundred fifty million, six hundred sixty-three thousand, one hundred forty-five".

Divisors: 1 5 30132629 150663145