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49308617 = 66174597
BaseRepresentation
bin1011110000011…
…0001111001001
310102210010201002
42330012033021
5100110333432
64520504345
71136054621
oct274061711
9112703632
1049308617
1125919326
121461b0b5
13a2a57c7
146797881
1544dee62
hex2f063c9

49308617 has 4 divisors (see below), whose sum is σ = 49383876. Its totient is φ = 49233360.

The previous prime is 49308607. The next prime is 49308643. The reversal of 49308617 is 71680394.

49308617 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 71680394 = 235840197.

It can be written as a sum of positive squares in 2 ways, for example, as 43178041 + 6130576 = 6571^2 + 2476^2 .

It is a cyclic number.

It is not a de Polignac number, because 49308617 - 220 = 48260041 is a prime.

It is a super-3 number, since 3×493086173 (a number of 24 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (49308607) 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 3 ways as a sum of consecutive naturals, for example, 36638 + ... + 37959.

It is an arithmetic number, because the mean of its divisors is an integer number (12345969).

Almost surely, 249308617 is an apocalyptic number.

It is an amenable number.

49308617 is a deficient number, since it is larger than the sum of its proper divisors (75259).

49308617 is an equidigital number, since it uses as much as digits as its factorization.

49308617 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75258.

The product of its (nonzero) digits is 36288, while the sum is 38.

The square root of 49308617 is about 7022.0094702300. The cubic root of 49308617 is about 366.6972113214.

The spelling of 49308617 in words is "forty-nine million, three hundred eight thousand, six hundred seventeen".

Divisors: 1 661 74597 49308617