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49982381 = 235936833
BaseRepresentation
bin1011111010101…
…0101110101101
310111001100221022
42332222232231
5100243414011
64543143525
71144562141
oct276525655
9114040838
1049982381
1126239559
12148a4ba5
13a480397
1468d1221
1545c48db
hex2faabad

49982381 has 8 divisors (see below), whose sum is σ = 53040960. Its totient is φ = 46997632.

The previous prime is 49982377. The next prime is 49982389. The reversal of 49982381 is 18328994.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 49982381 - 22 = 49982377 is a prime.

It is a super-2 number, since 2×499823812 = 4996476820858322, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (49982389) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17060 + ... + 19773.

It is an arithmetic number, because the mean of its divisors is an integer number (6630120).

Almost surely, 249982381 is an apocalyptic number.

It is an amenable number.

49982381 is a deficient number, since it is larger than the sum of its proper divisors (3058579).

49982381 is a wasteful number, since it uses less digits than its factorization.

49982381 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36915.

The product of its digits is 124416, while the sum is 44.

The square root of 49982381 is about 7069.8218506551. The cubic root of 49982381 is about 368.3598721463.

The spelling of 49982381 in words is "forty-nine million, nine hundred eighty-two thousand, three hundred eighty-one".

Divisors: 1 23 59 1357 36833 847159 2173147 49982381