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18264855706 = 282720995261
BaseRepresentation
bin10001000000101010…
…111001010010011010
31202010220112210202021
4101000222321102122
5244401300340311
612220223125054
71214422466116
oct210052712232
952126483667
1018264855706
117823042479
123658a4378a
131951074a36
14c53a92746
1571d774171
hex440ab949a

18264855706 has 16 divisors (see below), whose sum is σ = 27448696800. Its totient is φ = 9115306480.

The previous prime is 18264855701. The next prime is 18264855737. The reversal of 18264855706 is 60755846281.

It is a happy number.

It is a super-2 number, since 2×182648557062 (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (18264855701) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3469116 + ... + 3474376.

It is an arithmetic number, because the mean of its divisors is an integer number (1715543550).

Almost surely, 218264855706 is an apocalyptic number.

18264855706 is a deficient number, since it is larger than the sum of its proper divisors (9183841094).

18264855706 is a wasteful number, since it uses less digits than its factorization.

18264855706 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8189.

The product of its (nonzero) digits is 3225600, while the sum is 52.

The spelling of 18264855706 in words is "eighteen billion, two hundred sixty-four million, eight hundred fifty-five thousand, seven hundred six".

Divisors: 1 2 827 1654 2099 4198 5261 10522 1735873 3471746 4350847 8701694 11042839 22085678 9132427853 18264855706