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48720307457 = 59825767923
BaseRepresentation
bin101101010111111101…
…001110010100000001
311122202101212001110202
4231113331032110001
51244234344314312
634214245134545
73343222531463
oct552775162401
9148671761422
1048720307457
1119731386108
1295383ba455
1347958c50c3
1425027b8133
1514023669c2
hexb57f4e501

48720307457 has 4 divisors (see below), whose sum is σ = 49546075440. Its totient is φ = 47894539476.

The previous prime is 48720307453. The next prime is 48720307483. The reversal of 48720307457 is 75470302784.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 48720307457 - 22 = 48720307453 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (48720307453) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 412883903 + ... + 412884020.

It is an arithmetic number, because the mean of its divisors is an integer number (12386518860).

Almost surely, 248720307457 is an apocalyptic number.

It is an amenable number.

48720307457 is a deficient number, since it is larger than the sum of its proper divisors (825767983).

48720307457 is an equidigital number, since it uses as much as digits as its factorization.

48720307457 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 825767982.

The product of its (nonzero) digits is 1317120, while the sum is 47.

The spelling of 48720307457 in words is "forty-eight billion, seven hundred twenty million, three hundred seven thousand, four hundred fifty-seven".

Divisors: 1 59 825767923 48720307457