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5087189971 = 13936598489
BaseRepresentation
bin1001011110011100…
…00101101111010011
3111010112110000201101
410233032011233103
540404310034341
62200444045231
7240031254433
oct45716055723
914115400641
105087189971
11218064a136
12b9b833817
13630c387a6
143638ba2c3
151eb92a831
hex12f385bd3

5087189971 has 4 divisors (see below), whose sum is σ = 5123788600. Its totient is φ = 5050591344.

The previous prime is 5087189969. The next prime is 5087190011. The reversal of 5087189971 is 1799817805.

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 5087189971 - 21 = 5087189969 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5087589971) 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, 18299106 + ... + 18299383.

It is an arithmetic number, because the mean of its divisors is an integer number (1280947150).

Almost surely, 25087189971 is an apocalyptic number.

5087189971 is a deficient number, since it is larger than the sum of its proper divisors (36598629).

5087189971 is a wasteful number, since it uses less digits than its factorization.

5087189971 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36598628.

The product of its (nonzero) digits is 1270080, while the sum is 55.

The square root of 5087189971 is about 71324.5397531593. The cubic root of 5087189971 is about 1719.8582417648.

The spelling of 5087189971 in words is "five billion, eighty-seven million, one hundred eighty-nine thousand, nine hundred seventy-one".

Divisors: 1 139 36598489 5087189971