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27954000830 = 2571728183597
BaseRepresentation
bin11010000010001100…
…000011001110111110
32200011011101101011002
4122002030003032332
5424222211011310
620501503130302
72006504041460
oct320214031676
980134341132
1027954000830
1110945339628
1255018a3992
1328365336c2
1414d2818130
15ad91cbda5
hex6823033be

27954000830 has 64 divisors (see below), whose sum is σ = 61105456512. Its totient is φ = 8988241920.

The previous prime is 27954000829. The next prime is 27954000863. The reversal of 27954000830 is 3800045972.

It is a Curzon number.

It is a congruent number.

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, 292592 + ... + 376188.

It is an arithmetic number, because the mean of its divisors is an integer number (954772758).

Almost surely, 227954000830 is an apocalyptic number.

It is a pronic number, being equal to 167194×167195.

27954000830 is an abundant number, since it is smaller than the sum of its proper divisors (33151455682).

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

27954000830 is a wasteful number, since it uses less digits than its factorization.

27954000830 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83909.

The product of its (nonzero) digits is 60480, while the sum is 38.

The spelling of 27954000830 in words is "twenty-seven billion, nine hundred fifty-four million, eight hundred thirty", and thus it is an aban number.

Divisors: 1 2 5 7 10 14 17 34 35 70 85 119 170 238 281 562 595 1190 1405 1967 2810 3934 4777 9554 9835 19670 23885 33439 47770 66878 83597 167194 167195 334390 417985 585179 835970 1170358 1421149 2842298 2925895 5851790 7105745 9948043 14211490 19896086 23490757 46981514 49740215 99480430 117453785 164435299 234907570 328870598 399342869 798685738 822176495 1644352990 1996714345 2795400083 3993428690 5590800166 13977000415 27954000830