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18928080026 = 264114764493
BaseRepresentation
bin10001101000001100…
…111001010010011010
31210212010112002110222
4101220030321102122
5302231042030101
612410114240042
71240025011532
oct215014712232
953763462428
1018928080026
118033453749
123802b86022
131a285a906b
14cb7bb64c2
1575bad001b
hex46833949a

18928080026 has 8 divisors (see below), whose sum is σ = 28436415444. Its totient is φ = 9449274880.

The previous prime is 18928080013. The next prime is 18928080043. The reversal of 18928080026 is 62008082981.

It can be written as a sum of positive squares in 2 ways, for example, as 18428334001 + 499746025 = 135751^2 + 22355^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7380965 + ... + 7383528.

Almost surely, 218928080026 is an apocalyptic number.

18928080026 is a deficient number, since it is larger than the sum of its proper divisors (9508335418).

18928080026 is a wasteful number, since it uses less digits than its factorization.

18928080026 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14765136.

The product of its (nonzero) digits is 110592, while the sum is 44.

The spelling of 18928080026 in words is "eighteen billion, nine hundred twenty-eight million, eighty thousand, twenty-six".

Divisors: 1 2 641 1282 14764493 29528986 9464040013 18928080026