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42842680 = 2351071067
BaseRepresentation
bin1010001101101…
…1101000111000
32222121122002221
42203123220320
541431431210
64130133424
71030104526
oct243335070
988548087
1042842680
1122202381
1212421274
138b506ca
145993316
153b641da
hex28dba38

42842680 has 16 divisors (see below), whose sum is σ = 96396120. Its totient is φ = 17137056.

The previous prime is 42842647. The next prime is 42842687. The reversal of 42842680 is 8624824.

42842680 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42842687) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 535494 + ... + 535573.

Almost surely, 242842680 is an apocalyptic number.

42842680 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

42842680 is an abundant number, since it is smaller than the sum of its proper divisors (53553440).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

42842680 is a wasteful number, since it uses less digits than its factorization.

42842680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1071078 (or 1071074 counting only the distinct ones).

The product of its (nonzero) digits is 24576, while the sum is 34.

The square root of 42842680 is about 6545.4319949106. The cubic root of 42842680 is about 349.9120323142.

The spelling of 42842680 in words is "forty-two million, eight hundred forty-two thousand, six hundred eighty".

Divisors: 1 2 4 5 8 10 20 40 1071067 2142134 4284268 5355335 8568536 10710670 21421340 42842680