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5125128083 = 6776494449
BaseRepresentation
bin1001100010111101…
…10011111110010011
3111020011211111000122
410301132303332103
540444013044313
62204321140455
7241001604245
oct46136637623
914204744018
105125128083
1121a0001649
12bb048a72b
13638a5c98a
14368954095
151eee21708
hex1317b3f93

5125128083 has 4 divisors (see below), whose sum is σ = 5201622600. Its totient is φ = 5048633568.

The previous prime is 5125128079. The next prime is 5125128097. The reversal of 5125128083 is 3808215215.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 5125128083 - 22 = 5125128079 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5125428083) 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, 38247158 + ... + 38247291.

It is an arithmetic number, because the mean of its divisors is an integer number (1300405650).

Almost surely, 25125128083 is an apocalyptic number.

5125128083 is a deficient number, since it is larger than the sum of its proper divisors (76494517).

5125128083 is an equidigital number, since it uses as much as digits as its factorization.

5125128083 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76494516.

The product of its (nonzero) digits is 19200, while the sum is 35.

The square root of 5125128083 is about 71589.9998812683. Note that the first 3 decimals coincide. The cubic root of 5125128083 is about 1724.1229829338.

The spelling of 5125128083 in words is "five billion, one hundred twenty-five million, one hundred twenty-eight thousand, eighty-three".

Divisors: 1 67 76494449 5125128083