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4988540057 = 31160920647
BaseRepresentation
bin1001010010101011…
…10001010010011001
3110212122211002110212
410221111301102121
540204031240212
62143001420505
7234422614364
oct45125612231
913778732425
104988540057
11212a99aa86
12b7279a735
13616678667
1435475b0db
151e2e40e22
hex129571499

4988540057 has 4 divisors (see below), whose sum is σ = 5149460736. Its totient is φ = 4827619380.

The previous prime is 4988540047. The next prime is 4988540077. The reversal of 4988540057 is 7500458894.

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, and also an emirpimes, since its reverse is a distinct semiprime: 7500458894 = 23750229447.

It is a cyclic number.

It is not a de Polignac number, because 4988540057 - 218 = 4988277913 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 4988539987 and 4988540014.

It is not an unprimeable number, because it can be changed into a prime (4988540047) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 80460293 + ... + 80460354.

It is an arithmetic number, because the mean of its divisors is an integer number (1287365184).

Almost surely, 24988540057 is an apocalyptic number.

It is an amenable number.

4988540057 is a deficient number, since it is larger than the sum of its proper divisors (160920679).

4988540057 is a wasteful number, since it uses less digits than its factorization.

4988540057 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 160920678.

The product of its (nonzero) digits is 1612800, while the sum is 50.

The square root of 4988540057 is about 70629.5975990236. The cubic root of 4988540057 is about 1708.6685321823.

The spelling of 4988540057 in words is "four billion, nine hundred eighty-eight million, five hundred forty thousand, fifty-seven".

Divisors: 1 31 160920647 4988540057