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18480242869 = 116089275911
BaseRepresentation
bin10001001101100000…
…100010000010110101
31202200220211121101121
4101031200202002311
5300321420232434
612253435423541
71222646321044
oct211540420265
952626747347
1018480242869
117923684aa0
1236b8bb4bb1
13198688896a
14c7451c55b
1573261c7b4
hex44d8220b5

18480242869 has 8 divisors (see below), whose sum is σ = 20163648960. Its totient is φ = 16797400800.

The previous prime is 18480242857. The next prime is 18480242873. The reversal of 18480242869 is 96824208481.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 18480242869 - 215 = 18480210101 is a prime.

It is a super-2 number, since 2×184802428692 (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18480242069) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 70977 + ... + 204934.

It is an arithmetic number, because the mean of its divisors is an integer number (2520456120).

Almost surely, 218480242869 is an apocalyptic number.

It is an amenable number.

18480242869 is a deficient number, since it is larger than the sum of its proper divisors (1683406091).

18480242869 is a wasteful number, since it uses less digits than its factorization.

18480242869 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 282011.

The product of its (nonzero) digits is 1769472, while the sum is 52.

The spelling of 18480242869 in words is "eighteen billion, four hundred eighty million, two hundred forty-two thousand, eight hundred sixty-nine".

Divisors: 1 11 6089 66979 275911 3035021 1680022079 18480242869