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18676011008 = 21231147083
BaseRepresentation
bin10001011001001011…
…010101000000000000
31210012120012122210102
4101121023111000000
5301222024323013
612325111421532
71230544321454
oct213113250000
953176178712
1018676011008
117a14137546
1237526848a8
1319b82c09b5
14c9251c664
157448dcd58
hex4592d5000

18676011008 has 52 divisors (see below), whose sum is σ = 38552481408. Its totient is φ = 9036718080.

The previous prime is 18676010999. The next prime is 18676011019. The reversal of 18676011008 is 80011067681.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 53435 + ... + 200517.

Almost surely, 218676011008 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 18676011008, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19276240704).

18676011008 is an abundant number, since it is smaller than the sum of its proper divisors (19876470400).

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

18676011008 is an equidigital number, since it uses as much as digits as its factorization.

18676011008 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 147138 (or 147116 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 38.

Adding to 18676011008 its reverse (80011067681), we get a palindrome (98687078689).

The spelling of 18676011008 in words is "eighteen billion, six hundred seventy-six million, eleven thousand, eight".

Divisors: 1 2 4 8 16 31 32 62 64 124 128 248 256 496 512 992 1024 1984 2048 3968 4096 7936 15872 31744 63488 126976 147083 294166 588332 1176664 2353328 4559573 4706656 9119146 9413312 18238292 18826624 36476584 37653248 72953168 75306496 145906336 150612992 291812672 301225984 583625344 602451968 1167250688 2334501376 4669002752 9338005504 18676011008