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48951013 = 63737681
BaseRepresentation
bin1011101010111…
…0111011100101
310102002222011111
42322232323211
5100012413023
64505105021
71133035216
oct272567345
9112088144
1048951013
11256a4691
1214488171
13a1abac7
14670340d
15446e00d
hex2eaeee5

48951013 has 4 divisors (see below), whose sum is σ = 48965068. Its totient is φ = 48936960.

The previous prime is 48950999. The next prime is 48951031. The reversal of 48951013 is 31015984.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 37540129 + 11410884 = 6127^2 + 3378^2 .

It is a cyclic number.

It is not a de Polignac number, because 48951013 - 25 = 48950981 is a prime.

It is the 6997-th Hogben number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (48951073) by changing a digit.

It is a nontrivial repunit in base 6996.

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 3 ways as a sum of consecutive naturals, for example, 2533 + ... + 10213.

It is an arithmetic number, because the mean of its divisors is an integer number (12241267).

Almost surely, 248951013 is an apocalyptic number.

It is an amenable number.

48951013 is a deficient number, since it is larger than the sum of its proper divisors (14055).

48951013 is an equidigital number, since it uses as much as digits as its factorization.

48951013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14054.

The product of its (nonzero) digits is 4320, while the sum is 31.

The square root of 48951013 is about 6996.5000535982. The cubic root of 48951013 is about 365.8085858465.

Adding to 48951013 its reverse (31015984), we get a palindrome (79966997).

The spelling of 48951013 in words is "forty-eight million, nine hundred fifty-one thousand, thirteen".

Divisors: 1 6373 7681 48951013