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18348260480 = 2751117198069
BaseRepresentation
bin10001000101101001…
…000011110010000000
31202100201111012120222
4101011221003302000
5300034123313410
612232402522212
71216454432534
oct210551036200
952321435528
1018348260480
117866129740
123680966368
131965427a84
14c60ba3bc4
15725c4b955
hex445a43c80

18348260480 has 256 divisors, whose sum is σ = 53339472000. Its totient is φ = 5948375040.

The previous prime is 18348260477. The next prime is 18348260503. The reversal of 18348260480 is 8406284381.

It is a Harshad number since it is a multiple of its sum of digits (44).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2269886 + ... + 2277954.

Almost surely, 218348260480 is an apocalyptic number.

18348260480 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 18348260480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (26669736000).

18348260480 is an abundant number, since it is smaller than the sum of its proper divisors (34991211520).

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

18348260480 is a wasteful number, since it uses less digits than its factorization.

18348260480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8135 (or 8123 counting only the distinct ones).

The product of its (nonzero) digits is 294912, while the sum is 44.

The spelling of 18348260480 in words is "eighteen billion, three hundred forty-eight million, two hundred sixty thousand, four hundred eighty".