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5118905 = 51128461
BaseRepresentation
bin10011100001101110111001
3100122001211002
4103201232321
52302301110
6301414345
761336631
oct23415671
910561732
105118905
112986a00
12186a3b5
1310a2c4c
149736c1
156b1aa5
hex4e1bb9

5118905 has 12 divisors (see below), whose sum is σ = 6752676. Its totient is φ = 3722400.

The previous prime is 5118901. The next prime is 5118907. The reversal of 5118905 is 5098115.

It can be written as a sum of positive squares in 2 ways, for example, as 3136441 + 1982464 = 1771^2 + 1408^2 .

It is not a de Polignac number, because 5118905 - 22 = 5118901 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5118901) 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 11 ways as a sum of consecutive naturals, for example, 3626 + ... + 4835.

It is an arithmetic number, because the mean of its divisors is an integer number (562723).

Almost surely, 25118905 is an apocalyptic number.

5118905 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

It is an amenable number.

5118905 is a deficient number, since it is larger than the sum of its proper divisors (1633771).

5118905 is a wasteful number, since it uses less digits than its factorization.

5118905 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8488 (or 8477 counting only the distinct ones).

The product of its (nonzero) digits is 1800, while the sum is 29.

The square root of 5118905 is about 2262.4997237569. The cubic root of 5118905 is about 172.3424873162.

The spelling of 5118905 in words is "five million, one hundred eighteen thousand, nine hundred five".

Divisors: 1 5 11 55 121 605 8461 42305 93071 465355 1023781 5118905