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42680826669 = 3131094380171
BaseRepresentation
bin100111101111111110…
…011011101100101101
311002011111111122100010
4213233332123230231
51144402242423134
631335102123433
73040446016665
oct475776335455
9132144448303
1042680826669
1117112239878
128331880579
1340425b4c30
1420cc64d1a5
15119c030ce9
hex9eff9bb2d

42680826669 has 8 divisors (see below), whose sum is σ = 61285289632. Its totient is φ = 26265124080.

The previous prime is 42680826667. The next prime is 42680826677. The reversal of 42680826669 is 96662808624.

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

It is not a de Polignac number, because 42680826669 - 21 = 42680826667 is a prime.

It is a super-2 number, since 2×426808266692 (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 (42680826667) 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, 547190047 + ... + 547190124.

It is an arithmetic number, because the mean of its divisors is an integer number (7660661204).

Almost surely, 242680826669 is an apocalyptic number.

It is an amenable number.

42680826669 is a deficient number, since it is larger than the sum of its proper divisors (18604462963).

42680826669 is a wasteful number, since it uses less digits than its factorization.

42680826669 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1094380187.

The product of its (nonzero) digits is 11943936, while the sum is 57.

The spelling of 42680826669 in words is "forty-two billion, six hundred eighty million, eight hundred twenty-six thousand, six hundred sixty-nine".

Divisors: 1 3 13 39 1094380171 3283140513 14226942223 42680826669