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49317785 = 511281517
BaseRepresentation
bin1011110000100…
…0011110011001
310102210121021122
42330020132121
5100111132120
64521015025
71136123426
oct274103631
9112717248
1049317785
1125925200
1214624475
13a2a9a2a
14679ad4d
1544e2a25
hex2f08799

49317785 has 12 divisors (see below), whose sum is σ = 65051364. Its totient is φ = 35867040.

The previous prime is 49317757. The next prime is 49317791. The reversal of 49317785 is 58771394.

49317785 is nontrivially palindromic in base 13.

49317785 is digitally balanced in base 2, 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 2 ways, for example, as 6911641 + 42406144 = 2629^2 + 6512^2 .

It is not a de Polignac number, because 49317785 - 214 = 49301401 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is an unprimeable number.

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, 40154 + ... + 41363.

It is an arithmetic number, because the mean of its divisors is an integer number (5420947).

Almost surely, 249317785 is an apocalyptic number.

It is an amenable number.

49317785 is a deficient number, since it is larger than the sum of its proper divisors (15733579).

49317785 is a wasteful number, since it uses less digits than its factorization.

49317785 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81544 (or 81533 counting only the distinct ones).

The product of its digits is 211680, while the sum is 44.

The square root of 49317785 is about 7022.6622444768. The cubic root of 49317785 is about 366.7199367049.

The spelling of 49317785 in words is "forty-nine million, three hundred seventeen thousand, seven hundred eighty-five".

Divisors: 1 5 11 55 121 605 81517 407585 896687 4483435 9863557 49317785