Search a number
-
+
2105450152 = 231320244713
BaseRepresentation
bin111110101111110…
…1001111010101000
312102201202221122021
41331133221322220
513302443401102
6544531034224
7103114013431
oct17537517250
95381687567
102105450152
11990520953
124a913b974
132772787c0
1415d8a8488
15c4c92137
hex7d7e9ea8

2105450152 has 16 divisors (see below), whose sum is σ = 4251389940. Its totient is φ = 971746176.

The previous prime is 2105450147. The next prime is 2105450177. The reversal of 2105450152 is 2510545012.

It can be written as a sum of positive squares in 2 ways, for example, as 2079907236 + 25542916 = 45606^2 + 5054^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10122253 + ... + 10122460.

Almost surely, 22105450152 is an apocalyptic number.

It is an amenable number.

2105450152 is an abundant number, since it is smaller than the sum of its proper divisors (2145939788).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2105450152 is a wasteful number, since it uses less digits than its factorization.

2105450152 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20244732 (or 20244728 counting only the distinct ones).

The product of its (nonzero) digits is 2000, while the sum is 25.

The square root of 2105450152 is about 45885.1844498853. The cubic root of 2105450152 is about 1281.6860414838.

Adding to 2105450152 its reverse (2510545012), we get a palindrome (4615995164).

The spelling of 2105450152 in words is "two billion, one hundred five million, four hundred fifty thousand, one hundred fifty-two".

Divisors: 1 2 4 8 13 26 52 104 20244713 40489426 80978852 161957704 263181269 526362538 1052725076 2105450152