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487878713713 = 3115738023023
BaseRepresentation
bin1110001100101111101…
…01100110000101110001
31201122022002212120101101
413012113311212011301
530443133422314323
61012043422004401
750151042433306
oct7062765460561
91648262776341
10487878713713
111789a98a6726
127a679716701
1337011b2ba21
14198834730ad
15ca56905dad
hex7197d66171

487878713713 has 4 divisors (see below), whose sum is σ = 503616736768. Its totient is φ = 472140690660.

The previous prime is 487878713689. The next prime is 487878713731. The reversal of 487878713713 is 317317878784.

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 de Polignac number, because none of the positive numbers 2k-487878713713 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (487878716713) 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, 7869011481 + ... + 7869011542.

It is an arithmetic number, because the mean of its divisors is an integer number (125904184192).

Almost surely, 2487878713713 is an apocalyptic number.

It is an amenable number.

487878713713 is a deficient number, since it is larger than the sum of its proper divisors (15738023055).

487878713713 is a wasteful number, since it uses less digits than its factorization.

487878713713 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15738023054.

The product of its digits is 44255232, while the sum is 64.

The spelling of 487878713713 in words is "four hundred eighty-seven billion, eight hundred seventy-eight million, seven hundred thirteen thousand, seven hundred thirteen".

Divisors: 1 31 15738023023 487878713713