[go: up one dir, main page]

Search a number
-
+
20145064 = 232518133
BaseRepresentation
bin100110011011…
…0001110101000
31101220110211111
41030312032220
520124120224
61555440104
7333141652
oct114661650
941813744
1020145064
111040a315
1268b6034
134234474
1429656d2
151b7dd94
hex13363a8

20145064 has 8 divisors (see below), whose sum is σ = 37772010. Its totient is φ = 10072528.

The previous prime is 20145031. The next prime is 20145077. The reversal of 20145064 is 46054102.

It can be written as a sum of positive squares in only one way, i.e., 17288964 + 2856100 = 4158^2 + 1690^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1259059 + ... + 1259074.

Almost surely, 220145064 is an apocalyptic number.

It is an amenable number.

20145064 is a deficient number, since it is larger than the sum of its proper divisors (17626946).

20145064 is a wasteful number, since it uses less digits than its factorization.

20145064 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2518139 (or 2518135 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 22.

The square root of 20145064 is about 4488.3253001537. The cubic root of 20145064 is about 272.0964551226.

Adding to 20145064 its reverse (46054102), we get a palindrome (66199166).

The spelling of 20145064 in words is "twenty million, one hundred forty-five thousand, sixty-four".

Divisors: 1 2 4 8 2518133 5036266 10072532 20145064