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48515897 = 67372089
BaseRepresentation
bin1011100100010…
…0101100111001
310101021212022002
42321010230321
544410002042
64451510345
71126243523
oct271045471
9111255262
1048515897
1125427791
12142b83b5
13a088a41
14662ca13
1543d5132
hex2e44b39

48515897 has 4 divisors (see below), whose sum is σ = 48588660. Its totient is φ = 48443136.

The previous prime is 48515893. The next prime is 48515903. The reversal of 48515897 is 79851584.

48515897 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 26790976 + 21724921 = 5176^2 + 4661^2 .

It is a cyclic number.

It is not a de Polignac number, because 48515897 - 22 = 48515893 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (48515893) 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, 35372 + ... + 36717.

It is an arithmetic number, because the mean of its divisors is an integer number (12147165).

Almost surely, 248515897 is an apocalyptic number.

It is an amenable number.

48515897 is a deficient number, since it is larger than the sum of its proper divisors (72763).

48515897 is an equidigital number, since it uses as much as digits as its factorization.

48515897 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72762.

The product of its digits is 403200, while the sum is 47.

The square root of 48515897 is about 6965.3353831671. The cubic root of 48515897 is about 364.7214914261.

The spelling of 48515897 in words is "forty-eight million, five hundred fifteen thousand, eight hundred ninety-seven".

Divisors: 1 673 72089 48515897