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42628072806 = 23211215293297
BaseRepresentation
bin100111101100110101…
…001100010101100110
311002000211020110122100
4213230311030111212
51144300241312211
631325535312530
73036235432434
oct475465142546
9132024213570
1042628072806
1117095488040
12831807b746
1340346a4227
1420c5639d54
1511975b0156
hex9ecd4c566

42628072806 has 24 divisors (see below), whose sum is σ = 100757263464. Its totient is φ = 12917597760.

The previous prime is 42628072777. The next prime is 42628072811. The reversal of 42628072806 is 60827082624.

42628072806 is a `hidden beast` number, since 426 + 2 + 80 + 72 + 80 + 6 = 666.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 107646451 + ... + 107646846.

It is an arithmetic number, because the mean of its divisors is an integer number (4198219311).

Almost surely, 242628072806 is an apocalyptic number.

42628072806 is an abundant number, since it is smaller than the sum of its proper divisors (58129190658).

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

42628072806 is a wasteful number, since it uses less digits than its factorization.

42628072806 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 215293316 (or 215293313 counting only the distinct ones).

The product of its (nonzero) digits is 516096, while the sum is 45.

The spelling of 42628072806 in words is "forty-two billion, six hundred twenty-eight million, seventy-two thousand, eight hundred six".

Divisors: 1 2 3 6 9 11 18 22 33 66 99 198 215293297 430586594 645879891 1291759782 1937639673 2368226267 3875279346 4736452534 7104678801 14209357602 21314036403 42628072806