Search a number
-
+
4918905 = 325281389
BaseRepresentation
bin10010110000111001111001
3100020220110200
4102300321321
52224401110
6253232413
756544555
oct22607171
910226420
104918905
11285a712
121792709
131032bc4
14920865
156726c0
hex4b0e79

4918905 has 24 divisors (see below), whose sum is σ = 8578440. Its totient is φ = 2607360.

The previous prime is 4918883. The next prime is 4918943. The reversal of 4918905 is 5098194.

4918905 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 356409 + 4562496 = 597^2 + 2136^2 .

It is not a de Polignac number, because 4918905 - 25 = 4918873 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 4918905.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 12451 + ... + 12839.

It is an arithmetic number, because the mean of its divisors is an integer number (357435).

Almost surely, 24918905 is an apocalyptic number.

4918905 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

4918905 is a deficient number, since it is larger than the sum of its proper divisors (3659535).

4918905 is a wasteful number, since it uses less digits than its factorization.

4918905 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 681 (or 678 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 36.

The square root of 4918905 is about 2217.8604554841. The cubic root of 4918905 is about 170.0680811512.

The spelling of 4918905 in words is "four million, nine hundred eighteen thousand, nine hundred five".

Divisors: 1 3 5 9 15 45 281 389 843 1167 1405 1945 2529 3501 4215 5835 12645 17505 109309 327927 546545 983781 1639635 4918905