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90803067838 = 2779304926927
BaseRepresentation
bin101010010010001001…
…0001101101110111110
322200101012222210002121
41110210102031232332
52441431041132323
6105414144513154
76363120225130
oct1244422155676
9280335883077
1090803067838
1135566a6791a
121572191b7ba
13874130a652
144575825050
152566b0ca5d
hex152448dbbe

90803067838 has 32 divisors (see below), whose sum is σ = 157690368000. Its totient is φ = 38408969664.

The previous prime is 90803067829. The next prime is 90803067871. The reversal of 90803067838 is 83876030809.

It is a happy number.

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 15 ways as a sum of consecutive naturals, for example, 3358731 + ... + 3385657.

It is an arithmetic number, because the mean of its divisors is an integer number (4927824000).

Almost surely, 290803067838 is an apocalyptic number.

90803067838 is a deficient number, since it is larger than the sum of its proper divisors (66887300162).

90803067838 is a wasteful number, since it uses less digits than its factorization.

90803067838 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30064.

The product of its (nonzero) digits is 1741824, while the sum is 52.

The spelling of 90803067838 in words is "ninety billion, eight hundred three million, sixty-seven thousand, eight hundred thirty-eight".

Divisors: 1 2 7 14 79 158 553 1106 3049 6098 21343 26927 42686 53854 188489 240871 376978 481742 1686097 2127233 3372194 4254466 14890631 29781262 82100423 164200846 574702961 1149405922 6485933417 12971866834 45401533919 90803067838