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28000030030 = 25717231023019
BaseRepresentation
bin11010000100111011…
…101000110101001110
32200021100222220100021
4122010323220311032
5424321001430110
620510225452354
72010603220420
oct320473506516
980240886307
1028000030030
1110969317a95
1255151a10ba
132842c2b60b
1414d899a810
15add2702da
hex684ee8d4e

28000030030 has 64 divisors (see below), whose sum is σ = 63640028160. Its totient is φ = 8642456064.

The previous prime is 28000029983. The next prime is 28000030049. The reversal of 28000030030 is 3003000082.

It is a happy number.

28000030030 is a modest number, since divided by 30030 gives 28000 as remainder.

It is a junction number, because it is equal to n+sod(n) for n = 28000029986 and 28000030013.

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, 484140 + ... + 538879.

It is an arithmetic number, because the mean of its divisors is an integer number (994375440).

Almost surely, 228000030030 is an apocalyptic number.

28000030030 is an abundant number, since it is smaller than the sum of its proper divisors (35639998130).

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

28000030030 is a wasteful number, since it uses less digits than its factorization.

28000030030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1023073.

The product of its (nonzero) digits is 144, while the sum is 16.

The spelling of 28000030030 in words is "twenty-eight billion, thirty thousand, thirty".

Divisors: 1 2 5 7 10 14 17 23 34 35 46 70 85 115 119 161 170 230 238 322 391 595 782 805 1190 1610 1955 2737 3910 5474 13685 27370 1023019 2046038 5115095 7161133 10230190 14322266 17391323 23529437 34782646 35805665 47058874 71611330 86956615 117647185 121739261 164706059 173913230 235294370 243478522 329412118 400000429 608696305 800000858 823530295 1217392610 1647060590 2000002145 2800003003 4000004290 5600006006 14000015015 28000030030