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48437681 = 101479581
BaseRepresentation
bin1011100011000…
…1100110110001
310101010220000012
42320301212301
544400001211
64450104305
71125466505
oct270614661
9111126005
1048437681
1125383a46
121427b095
13a05c266
14660c305
1543bbd8b
hex2e319b1

48437681 has 4 divisors (see below), whose sum is σ = 48917364. Its totient is φ = 47958000.

The previous prime is 48437663. The next prime is 48437713. The reversal of 48437681 is 18673484.

48437681 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.

It can be written as a sum of positive squares in 2 ways, for example, as 46799281 + 1638400 = 6841^2 + 1280^2 .

It is a cyclic number.

It is not a de Polignac number, because 48437681 - 214 = 48421297 is a prime.

It is a super-2 number, since 2×484376812 = 4692417881315522, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (48437611) 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, 239690 + ... + 239891.

It is an arithmetic number, because the mean of its divisors is an integer number (12229341).

Almost surely, 248437681 is an apocalyptic number.

It is an amenable number.

48437681 is a deficient number, since it is larger than the sum of its proper divisors (479683).

48437681 is a wasteful number, since it uses less digits than its factorization.

48437681 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 479682.

The product of its digits is 129024, while the sum is 41.

The square root of 48437681 is about 6959.7184569492. The cubic root of 48437681 is about 364.5253880052.

The spelling of 48437681 in words is "forty-eight million, four hundred thirty-seven thousand, six hundred eighty-one".

Divisors: 1 101 479581 48437681