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18308245298618 = 2111923836018913
BaseRepresentation
bin1000010100110101110000…
…11101010001110110111010
32101211020210002112020210002
410022122320131101312322
54344430241244023433
6102534405231353002
73566504246230532
oct412327035216672
971736702466702
1018308245298618
1159195351a3430
122078316382762
13a2a5c9b78bb2
144741a39cc4c2
1521b38d3689e8
hex10a6b8751dba

18308245298618 has 48 divisors (see below), whose sum is σ = 31701282978816. Its totient is φ = 7863347393280.

The previous prime is 18308245298593. The next prime is 18308245298627. The reversal of 18308245298618 is 81689254280381.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 32330 + ... + 6051242.

It is an arithmetic number, because the mean of its divisors is an integer number (660443395392).

Almost surely, 218308245298618 is an apocalyptic number.

18308245298618 is a deficient number, since it is larger than the sum of its proper divisors (13393037680198).

18308245298618 is a wasteful number, since it uses less digits than its factorization.

18308245298618 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6019347 (or 6019328 counting only the distinct ones).

The product of its (nonzero) digits is 53084160, while the sum is 65.

The spelling of 18308245298618 in words is "eighteen trillion, three hundred eight billion, two hundred forty-five million, two hundred ninety-eight thousand, six hundred eighteen".

Divisors: 1 2 11 19 22 38 209 361 383 418 722 766 3971 4213 7277 7942 8426 14554 80047 138263 160094 276526 1520893 3041786 6018913 12037826 66208043 114359347 132416086 228718694 1257952817 2172827593 2305243679 2515905634 4345655186 4610487358 23901103523 25357680469 43799629901 47802207046 50715360938 87599259802 481795928911 832192968119 963591857822 1664385936238 9154122649309 18308245298618