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48447842687 = 89544357783
BaseRepresentation
bin101101000111101101…
…110110100101111111
311122001102011102001222
4231013231312211333
51243210121431222
634131233223555
73333403603526
oct550755664577
9148042142058
1048447842687
11196015a9312
129481101bbb
13475131844a
1424b85314bd
1513d8496542
hexb47b7697f

48447842687 has 4 divisors (see below), whose sum is σ = 48992200560. Its totient is φ = 47903484816.

The previous prime is 48447842633. The next prime is 48447842693. The reversal of 48447842687 is 78624874484.

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 48447842687 - 214 = 48447826303 is a prime.

It is a super-2 number, since 2×484478426872 (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (48447842087) 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, 272178803 + ... + 272178980.

It is an arithmetic number, because the mean of its divisors is an integer number (12248050140).

Almost surely, 248447842687 is an apocalyptic number.

48447842687 is a deficient number, since it is larger than the sum of its proper divisors (544357873).

48447842687 is an equidigital number, since it uses as much as digits as its factorization.

48447842687 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 544357872.

The product of its digits is 77070336, while the sum is 62.

The spelling of 48447842687 in words is "forty-eight billion, four hundred forty-seven million, eight hundred forty-two thousand, six hundred eighty-seven".

Divisors: 1 89 544357783 48447842687