Search a number
-
+
2152405315 = 5430481063
BaseRepresentation
bin1000000001001011…
…0001100101000011
312120000010112000101
42000102301211003
513402003432230
6553325303231
7104224100104
oct20022614503
95500115011
102152405315
11a04a81a75
12500a04b17
13283c09018
14165c0c3ab
15c8e69aca
hex804b1943

2152405315 has 4 divisors (see below), whose sum is σ = 2582886384. Its totient is φ = 1721924248.

The previous prime is 2152405301. The next prime is 2152405319. The reversal of 2152405315 is 5135042512.

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

It is a cyclic number.

It is not a de Polignac number, because 2152405315 - 221 = 2150308163 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2152405319) 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, 215240527 + ... + 215240536.

It is an arithmetic number, because the mean of its divisors is an integer number (645721596).

Almost surely, 22152405315 is an apocalyptic number.

2152405315 is a deficient number, since it is larger than the sum of its proper divisors (430481069).

2152405315 is an equidigital number, since it uses as much as digits as its factorization.

2152405315 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 430481068.

The product of its (nonzero) digits is 6000, while the sum is 28.

The square root of 2152405315 is about 46394.0224059091. The cubic root of 2152405315 is about 1291.1440114962.

Adding to 2152405315 its reverse (5135042512), we get a palindrome (7287447827).

The spelling of 2152405315 in words is "two billion, one hundred fifty-two million, four hundred five thousand, three hundred fifteen".

Divisors: 1 5 430481063 2152405315