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42434367871 = 77877769589
BaseRepresentation
bin100111100001010010…
…010001000101111111
311001112022202020102111
4213201102101011333
51143401144232441
631254415434451
73031364114140
oct474122210577
9131468666374
1042434367871
1116aa6104715
128283225a27
13400351231c
1420a7a15ac7
15118559b081
hex9e149117f

42434367871 has 8 divisors (see below), whose sum is σ = 48502640160. Its totient is φ = 36367650528.

The previous prime is 42434367869. The next prime is 42434367881. The reversal of 42434367871 is 17876343424.

42434367871 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 42434367871 - 21 = 42434367869 is a prime.

It is a super-2 number, since 2×424343678712 (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 (42434367881) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 329656 + ... + 439933.

It is an arithmetic number, because the mean of its divisors is an integer number (6062830020).

Almost surely, 242434367871 is an apocalyptic number.

42434367871 is a deficient number, since it is larger than the sum of its proper divisors (6068272289).

42434367871 is an equidigital number, since it uses as much as digits as its factorization.

42434367871 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 777473.

The product of its digits is 2709504, while the sum is 49.

The spelling of 42434367871 in words is "forty-two billion, four hundred thirty-four million, three hundred sixty-seven thousand, eight hundred seventy-one".

Divisors: 1 7 7877 55139 769589 5387123 6062052553 42434367871