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42169013886 = 2337607931247
BaseRepresentation
bin100111010001011110…
…000001011001111110
311000211211102212012010
4213101132001121332
51142330231421021
631212220152050
73021662463306
oct472136013176
9130754385163
1042169013886
111697a3442aa
12820a398626
133c9055512c
1420806a0606
15116c132976
hex9d178167e

42169013886 has 32 divisors (see below), whose sum is σ = 86634455040. Its totient is φ = 13673749536.

The previous prime is 42169013881. The next prime is 42169013911. The reversal of 42169013886 is 68831096124.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42169013881) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 1333915 + ... + 1365161.

It is an arithmetic number, because the mean of its divisors is an integer number (2707326720).

Almost surely, 242169013886 is an apocalyptic number.

42169013886 is an abundant number, since it is smaller than the sum of its proper divisors (44465441154).

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

42169013886 is a wasteful number, since it uses less digits than its factorization.

42169013886 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37368.

The product of its (nonzero) digits is 497664, while the sum is 48.

The spelling of 42169013886 in words is "forty-two billion, one hundred sixty-nine million, thirteen thousand, eight hundred eighty-six".

Divisors: 1 2 3 6 37 74 111 222 6079 12158 18237 31247 36474 62494 93741 187482 224923 449846 674769 1156139 1349538 2312278 3468417 6936834 189950513 379901026 569851539 1139703078 7028168981 14056337962 21084506943 42169013886