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42131037805 = 513799610639
BaseRepresentation
bin100111001111001101…
…001001111001101101
311000202011222110210121
4213033031021321231
51142241021202210
631204342204541
73021021625003
oct471715117155
9130664873717
1042131037805
111695a96630a
1281b9723751
133c8571988c
142079616a73
151168b306da
hex9cf349e6d

42131037805 has 8 divisors (see below), whose sum is σ = 50560992000. Its totient is φ = 33702332496.

The previous prime is 42131037791. The next prime is 42131037841. The reversal of 42131037805 is 50873013124.

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 42131037805 - 29 = 42131037293 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 236325 + ... + 374314.

It is an arithmetic number, because the mean of its divisors is an integer number (6320124000).

Almost surely, 242131037805 is an apocalyptic number.

It is an amenable number.

42131037805 is a deficient number, since it is larger than the sum of its proper divisors (8429954195).

42131037805 is a wasteful number, since it uses less digits than its factorization.

42131037805 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 624443.

The product of its (nonzero) digits is 20160, while the sum is 34.

The spelling of 42131037805 in words is "forty-two billion, one hundred thirty-one million, thirty-seven thousand, eight hundred five".

Divisors: 1 5 13799 68995 610639 3053195 8426207561 42131037805