[go: up one dir, main page]

Search a number
-
+
630072738 = 23235004041
BaseRepresentation
bin100101100011100…
…010010110100010
31121220121000022100
4211203202112202
52242244311423
6142304351230
721420346521
oct4543422642
91556530270
10630072738
112a3728a79
12157015516
13a06c7a09
145d9744b8
153a4ad343
hex258e25a2

630072738 has 12 divisors (see below), whose sum is σ = 1365157638. Its totient is φ = 210024240.

The previous prime is 630072731. The next prime is 630072739. The reversal of 630072738 is 837270036.

It can be written as a sum of positive squares in only one way, i.e., 629156889 + 915849 = 25083^2 + 957^2 .

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (630072731) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 17502003 + ... + 17502038.

Almost surely, 2630072738 is an apocalyptic number.

630072738 is an abundant number, since it is smaller than the sum of its proper divisors (735084900).

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

630072738 is a wasteful number, since it uses less digits than its factorization.

630072738 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35004049 (or 35004046 counting only the distinct ones).

The product of its (nonzero) digits is 42336, while the sum is 36.

The square root of 630072738 is about 25101.2497298441. The cubic root of 630072738 is about 857.2948792978.

The spelling of 630072738 in words is "six hundred thirty million, seventy-two thousand, seven hundred thirty-eight".

Divisors: 1 2 3 6 9 18 35004041 70008082 105012123 210024246 315036369 630072738