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8100880018 = 273111763149
BaseRepresentation
bin1111000101101100…
…11001111010010010
3202220120020100021021
413202312121322102
5113042311130033
63415501550054
7404514226000
oct74266317222
922816210237
108100880018
113487810070
1216a0b7532a
139c140433a
1456bc47a70
153262c5b2d
hex1e2d99e92

8100880018 has 64 divisors (see below), whose sum is σ = 16368480000. Its totient is φ = 2970481920.

The previous prime is 8100879977. The next prime is 8100880031.

8100880018 is nontrivially palindromic in base 10.

It is a Harshad number since it is a multiple of its sum of digits (34).

8100880018 is a strobogrammatic number because it is the same when read upside-down.

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, 96708 + ... + 159856.

It is an arithmetic number, because the mean of its divisors is an integer number (255757500).

Almost surely, 28100880018 is an apocalyptic number.

8100880018 is an abundant number, since it is smaller than the sum of its proper divisors (8267599982).

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

8100880018 is a wasteful number, since it uses less digits than its factorization.

8100880018 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63200 (or 63186 counting only the distinct ones).

The product of its (nonzero) digits is 4096, while the sum is 34.

The square root of 8100880018 is about 90004.8888561060. Note that the first 4 decimals coincide. The cubic root of 8100880018 is about 2008.3715776184.

The spelling of 8100880018 in words is "eight billion, one hundred million, eight hundred eighty thousand, eighteen".

Divisors: 1 2 7 11 14 17 22 34 49 77 98 119 154 187 238 343 374 539 686 833 1078 1309 1666 2618 3773 5831 7546 9163 11662 18326 63149 64141 126298 128282 442043 694639 884086 1073533 1389278 2147066 3094301 4862473 6188602 7514731 9724946 11808863 15029462 21660107 23617726 34037311 43320214 52603117 68074622 82662041 105206234 165324082 238261177 368221819 476522354 578634287 736443638 1157268574 4050440009 8100880018