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18071068845048 = 233883985186243
BaseRepresentation
bin1000001101111011111111…
…01000111010001111111000
32100222120120212012001022220
410012331333220322033320
54332034022111020143
6102233422345044040
73543406634520522
oct406757750721770
970876525161286
1018071068845048
11583799628443a
12203a364486620
13a1112c75a0cb
14466904332a12
1521510b248d83
hex106f7fa3a3f8

18071068845048 has 32 divisors (see below), whose sum is σ = 45182783817600. Its totient is φ = 6023008054368.

The previous prime is 18071068845017. The next prime is 18071068845061. The reversal of 18071068845048 is 84054886017081.

It is a junction number, because it is equal to n+sod(n) for n = 18071068844982 and 18071068845000.

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, 42380986 + ... + 42805257.

It is an arithmetic number, because the mean of its divisors is an integer number (1411961994300).

Almost surely, 218071068845048 is an apocalyptic number.

It is an amenable number.

18071068845048 is an abundant number, since it is smaller than the sum of its proper divisors (27111714972552).

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

18071068845048 is a wasteful number, since it uses less digits than its factorization.

18071068845048 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85195091 (or 85195087 counting only the distinct ones).

The product of its (nonzero) digits is 13762560, while the sum is 60.

The spelling of 18071068845048 in words is "eighteen trillion, seventy-one billion, sixty-eight million, eight hundred forty-five thousand, forty-eight".

Divisors: 1 2 3 4 6 8 12 24 8839 17678 26517 35356 53034 70712 106068 212136 85186243 170372486 255558729 340744972 511117458 681489944 1022234916 2044469832 752961201877 1505922403754 2258883605631 3011844807508 4517767211262 6023689615016 9035534422524 18071068845048