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18485084652 = 2237643201547
BaseRepresentation
bin10001001101110011…
…000000000111101100
31202201020221121001220
4101031303000013230
5300324140202102
612254131303340
71223035425036
oct211563000754
952636847056
1018485084652
117926391771
1236ba74ab50
131987892718
14c7501cc56
15732c771bc
hex44dcc01ec

18485084652 has 24 divisors (see below), whose sum is σ = 43137721536. Its totient is φ = 6160858128.

The previous prime is 18485084633. The next prime is 18485084663. The reversal of 18485084652 is 25648058481.

It is a super-2 number, since 2×184850846522 (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 18485084595 and 18485084604.

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, 9058 + ... + 192489.

It is an arithmetic number, because the mean of its divisors is an integer number (1797405064).

Almost surely, 218485084652 is an apocalyptic number.

18485084652 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

18485084652 is an abundant number, since it is smaller than the sum of its proper divisors (24652636884).

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

18485084652 is a wasteful number, since it uses less digits than its factorization.

18485084652 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 209197 (or 209195 counting only the distinct ones).

The product of its (nonzero) digits is 2457600, while the sum is 51.

The spelling of 18485084652 in words is "eighteen billion, four hundred eighty-five million, eighty-four thousand, six hundred fifty-two".

Divisors: 1 2 3 4 6 12 7643 15286 22929 30572 45858 91716 201547 403094 604641 806188 1209282 2418564 1540423721 3080847442 4621271163 6161694884 9242542326 18485084652