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150530641 = 181831661
BaseRepresentation
bin10001111100011…
…10101001010001
3101111020202012221
420332032221101
5302013440031
622534221041
73505326562
oct1076165121
9344222187
10150530641
1177a74998
12424b4781
13252565b1
1415dc6169
15d336a11
hex8f8ea51

150530641 has 4 divisors (see below), whose sum is σ = 151362484. Its totient is φ = 149698800.

The previous prime is 150530623. The next prime is 150530651. The reversal of 150530641 is 146035051.

150530641 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 18740241 + 131790400 = 4329^2 + 11480^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-150530641 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (150530651) 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, 415650 + ... + 416011.

It is an arithmetic number, because the mean of its divisors is an integer number (37840621).

Almost surely, 2150530641 is an apocalyptic number.

It is an amenable number.

150530641 is a deficient number, since it is larger than the sum of its proper divisors (831843).

150530641 is an equidigital number, since it uses as much as digits as its factorization.

150530641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 831842.

The product of its (nonzero) digits is 1800, while the sum is 25.

The square root of 150530641 is about 12269.0929167563. The cubic root of 150530641 is about 531.9550918902.

Adding to 150530641 its reverse (146035051), we get a palindrome (296565692).

The spelling of 150530641 in words is "one hundred fifty million, five hundred thirty thousand, six hundred forty-one".

Divisors: 1 181 831661 150530641