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152311241 = 532873797
BaseRepresentation
bin10010001010000…
…01010111001001
3101121121012202002
421011001113021
5302442424431
623040320345
73526424045
oct1105012711
9347535662
10152311241
1178a80765
12430130b5
132572abc4
141632b025
15d5893cb
hex91415c9

152311241 has 4 divisors (see below), whose sum is σ = 155185092. Its totient is φ = 149437392.

The previous prime is 152311213. The next prime is 152311253. The reversal of 152311241 is 142113251.

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 127351225 + 24960016 = 11285^2 + 4996^2 .

It is a cyclic number.

It is not a de Polignac number, because 152311241 - 210 = 152310217 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (152311541) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1436846 + ... + 1436951.

It is an arithmetic number, because the mean of its divisors is an integer number (38796273).

Almost surely, 2152311241 is an apocalyptic number.

It is an amenable number.

152311241 is a deficient number, since it is larger than the sum of its proper divisors (2873851).

152311241 is an equidigital number, since it uses as much as digits as its factorization.

152311241 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2873850.

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

The square root of 152311241 is about 12341.4440403058. Note that the first 3 decimals coincide. The cubic root of 152311241 is about 534.0443428041.

Adding to 152311241 its reverse (142113251), we get a palindrome (294424492).

The spelling of 152311241 in words is "one hundred fifty-two million, three hundred eleven thousand, two hundred forty-one".

Divisors: 1 53 2873797 152311241