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4905944289 = 32545104921
BaseRepresentation
bin1001001000110101…
…01100010011100001
3110122220101210101100
410210122230103201
540021410204124
62130451225013
7232400560401
oct44432542341
913586353340
104905944289
112098306614
12b4aba8169
1360251991c
143477ba801
151daa781c9
hex1246ac4e1

4905944289 has 6 divisors (see below), whose sum is σ = 7086363986. Its totient is φ = 3270629520.

The previous prime is 4905944249. The next prime is 4905944291. The reversal of 4905944289 is 9824495094.

4905944289 is a `hidden beast` number, since 4 + 9 + 0 + 594 + 42 + 8 + 9 = 666.

It can be written as a sum of positive squares in only one way, i.e., 4842072225 + 63872064 = 69585^2 + 7992^2 .

It is not a de Polignac number, because 4905944289 - 229 = 4369073377 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (4905944209) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 272552452 + ... + 272552469.

Almost surely, 24905944289 is an apocalyptic number.

It is an amenable number.

4905944289 is a deficient number, since it is larger than the sum of its proper divisors (2180419697).

4905944289 is a wasteful number, since it uses less digits than its factorization.

4905944289 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 545104927 (or 545104924 counting only the distinct ones).

The product of its (nonzero) digits is 3732480, while the sum is 54.

The square root of 4905944289 is about 70042.4463379171. The cubic root of 4905944289 is about 1699.1858026137.

The spelling of 4905944289 in words is "four billion, nine hundred five million, nine hundred forty-four thousand, two hundred eighty-nine".

Divisors: 1 3 9 545104921 1635314763 4905944289