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5486887681 = 11498807971
BaseRepresentation
bin1010001110000101…
…10100001100000001
3112011101112202220021
411013002310030001
542214120401211
62304243013441
7252653530042
oct50702641401
915141482807
105486887681
112366228a20
12109166a281
136959a2602
143a0a028c9
15221a7e771
hex1470b4301

5486887681 has 4 divisors (see below), whose sum is σ = 5985695664. Its totient is φ = 4988079700.

The previous prime is 5486887669. The next prime is 5486887691. The reversal of 5486887681 is 1867886845.

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 a de Polignac number, because none of the positive numbers 2k-5486887681 is a prime.

It is a super-2 number, since 2×54868876812 = 60211872847819115522, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5486887691) 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, 249403975 + ... + 249403996.

It is an arithmetic number, because the mean of its divisors is an integer number (1496423916).

Almost surely, 25486887681 is an apocalyptic number.

It is an amenable number.

5486887681 is a deficient number, since it is larger than the sum of its proper divisors (498807983).

5486887681 is a wasteful number, since it uses less digits than its factorization.

5486887681 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 498807982.

The product of its digits is 20643840, while the sum is 61.

The square root of 5486887681 is about 74073.5288817807. The cubic root of 5486887681 is about 1763.7702922325.

The spelling of 5486887681 in words is "five billion, four hundred eighty-six million, eight hundred eighty-seven thousand, six hundred eighty-one".

Divisors: 1 11 498807971 5486887681