Search a number
-
+
632240648 = 23136079237
BaseRepresentation
bin100101101011110…
…011101000001000
31122001200011010022
4211223303220020
52243323200043
6142423040012
721444646124
oct4553635010
91561604108
10632240648
112a4979836
121578a0008
13a0ca66c0
145dd7a584
153a78a868
hex25af3a08

632240648 has 16 divisors (see below), whose sum is σ = 1276639980. Its totient is φ = 291803328.

The previous prime is 632240647. The next prime is 632240669. The reversal of 632240648 is 846042236.

It can be written as a sum of positive squares in 2 ways, for example, as 625900324 + 6340324 = 25018^2 + 2518^2 .

It is a super-3 number, since 3×6322406483 (a number of 27 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (632240641) 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, 3039515 + ... + 3039722.

Almost surely, 2632240648 is an apocalyptic number.

It is an amenable number.

632240648 is an abundant number, since it is smaller than the sum of its proper divisors (644399332).

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

632240648 is a wasteful number, since it uses less digits than its factorization.

632240648 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6079256 (or 6079252 counting only the distinct ones).

The product of its (nonzero) digits is 55296, while the sum is 35.

The square root of 632240648 is about 25144.3959561569. The cubic root of 632240648 is about 858.2769937528.

The spelling of 632240648 in words is "six hundred thirty-two million, two hundred forty thousand, six hundred forty-eight".

Divisors: 1 2 4 8 13 26 52 104 6079237 12158474 24316948 48633896 79030081 158060162 316120324 632240648