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18880384130 = 256211303983
BaseRepresentation
bin10001100101010110…
…111100110010000010
31210201210202220000022
4101211112330302002
5302131334243010
612401252053442
71235605421456
oct214526746202
953653686008
1018880384130
118009537053
1237ab004282
131a1b74963a
14cb171c666
1575780cd55
hex4655bcc82

18880384130 has 16 divisors (see below), whose sum is σ = 33990274944. Its totient is φ = 7550912880.

The previous prime is 18880384129. The next prime is 18880384169. The reversal of 18880384130 is 3148308881.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 89882 + ... + 214101.

It is an arithmetic number, because the mean of its divisors is an integer number (2124392184).

Almost surely, 218880384130 is an apocalyptic number.

18880384130 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

18880384130 is a deficient number, since it is larger than the sum of its proper divisors (15109890814).

18880384130 is a wasteful number, since it uses less digits than its factorization.

18880384130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 310201.

The product of its (nonzero) digits is 147456, while the sum is 44.

The spelling of 18880384130 in words is "eighteen billion, eight hundred eighty million, three hundred eighty-four thousand, one hundred thirty".

Divisors: 1 2 5 10 6211 12422 31055 62110 303983 607966 1519915 3039830 1888038413 3776076826 9440192065 18880384130