Search a number
-
+
152605441 = 721321157
BaseRepresentation
bin10010001100010…
…01001100000001
3101122011011022101
421012021030001
5303031333231
623050510401
73532060552
oct1106111401
9348134271
10152605441
11791617aa
1243135401
1325801aa1
14163a6329
15d5e6661
hex9189301

152605441 has 4 divisors (see below), whose sum is σ = 152633812. Its totient is φ = 152577072.

The previous prime is 152605423. The next prime is 152605451. The reversal of 152605441 is 144506251.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 144506251 = 241599611.

It can be written as a sum of positive squares in 2 ways, for example, as 56565441 + 96040000 = 7521^2 + 9800^2 .

It is a cyclic number.

It is not a de Polignac number, because 152605441 - 29 = 152604929 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (152605421) 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, 3366 + ... + 17791.

It is an arithmetic number, because the mean of its divisors is an integer number (38158453).

Almost surely, 2152605441 is an apocalyptic number.

It is an amenable number.

152605441 is a deficient number, since it is larger than the sum of its proper divisors (28371).

152605441 is an equidigital number, since it uses as much as digits as its factorization.

152605441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28370.

The product of its (nonzero) digits is 4800, while the sum is 28.

The square root of 152605441 is about 12353.3574788395. The cubic root of 152605441 is about 534.3879698686.

The spelling of 152605441 in words is "one hundred fifty-two million, six hundred five thousand, four hundred forty-one".

Divisors: 1 7213 21157 152605441