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18483976291 = 1117156763079
BaseRepresentation
bin10001001101101110…
…110001100001100011
31202201011212021200111
4101031232301201203
5300323344220131
612254051432151
71223023130464
oct211556614143
952634767614
1018483976291
1179257a4a70
1236ba2b5657
1319875950a1
14c74c10d6b
15732b08ab1
hex44dbb1863

18483976291 has 16 divisors (see below), whose sum is σ = 21364439040. Its totient is φ = 15804823680.

The previous prime is 18483976237. The next prime is 18483976309. The reversal of 18483976291 is 19267938481.

It is a cyclic number.

It is not a de Polignac number, because 18483976291 - 27 = 18483976163 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (18483970291) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 261490 + ... + 324568.

It is an arithmetic number, because the mean of its divisors is an integer number (1335277440).

Almost surely, 218483976291 is an apocalyptic number.

18483976291 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

18483976291 is a deficient number, since it is larger than the sum of its proper divisors (2880462749).

18483976291 is a wasteful number, since it uses less digits than its factorization.

18483976291 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64674.

The product of its digits is 5225472, while the sum is 58.

The spelling of 18483976291 in words is "eighteen billion, four hundred eighty-three million, nine hundred seventy-six thousand, two hundred ninety-one".

Divisors: 1 11 17 187 1567 17237 26639 63079 293029 693869 1072343 11795773 98844793 1087292723 1680361481 18483976291