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19009069386 = 2319735944797
BaseRepresentation
bin10001101101000001…
…110110000101001010
31211001202220202222220
4101231001312011022
5302412310210021
612422130154510
71242030265236
oct215501660512
954052822886
1019009069386
1180751401aa
123826122a36
131a3c2c4868
14cc48595c6
15763c7bcc6
hex46d07614a

19009069386 has 32 divisors (see below), whose sum is σ = 38318417280. Its totient is φ = 6286491456.

The previous prime is 19009069369. The next prime is 19009069393. The reversal of 19009069386 is 68396090091.

It is a super-2 number, since 2×190090693862 (a number of 21 digits) contains 22 as substring.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 401940 + ... + 446736.

It is an arithmetic number, because the mean of its divisors is an integer number (1197450540).

Almost surely, 219009069386 is an apocalyptic number.

19009069386 is an abundant number, since it is smaller than the sum of its proper divisors (19309347894).

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

19009069386 is a wasteful number, since it uses less digits than its factorization.

19009069386 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45358.

The product of its (nonzero) digits is 629856, while the sum is 51.

The spelling of 19009069386 in words is "nineteen billion, nine million, sixty-nine thousand, three hundred eighty-six".

Divisors: 1 2 3 6 197 359 394 591 718 1077 1182 2154 44797 70723 89594 134391 141446 212169 268782 424338 8825009 16082123 17650018 26475027 32164246 48246369 52950054 96492738 3168178231 6336356462 9504534693 19009069386