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49383681 = 335945853
BaseRepresentation
bin1011110001100…
…0100100000001
310102220221200020
42330120210001
5100120234211
64522244053
71136516514
oct274304401
9112827606
1049383681
112596a766
1214656629
13a300a19
1467b6d7b
154507306
hex2f18901

49383681 has 8 divisors (see below), whose sum is σ = 66029760. Its totient is φ = 32830032.

The previous prime is 49383673. The next prime is 49383683. The reversal of 49383681 is 18638394.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 49383681 - 23 = 49383673 is a prime.

It is a super-2 number, since 2×493836812 = 4877495898219522, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (49383683) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21850 + ... + 24003.

It is an arithmetic number, because the mean of its divisors is an integer number (8253720).

Almost surely, 249383681 is an apocalyptic number.

It is an amenable number.

49383681 is a deficient number, since it is larger than the sum of its proper divisors (16646079).

49383681 is a wasteful number, since it uses less digits than its factorization.

49383681 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46215.

The product of its digits is 124416, while the sum is 42.

The square root of 49383681 is about 7027.3523463677. The cubic root of 49383681 is about 366.8831950647.

The spelling of 49383681 in words is "forty-nine million, three hundred eighty-three thousand, six hundred eighty-one".

Divisors: 1 3 359 1077 45853 137559 16461227 49383681