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305870094 = 23419432311
BaseRepresentation
bin10010001110110…
…011010100001110
3210022112210220000
4102032303110032
51111300320334
650203505130
710402565355
oct2216632416
9708483800
10305870094
11147723802
12865281a6
134b4a492a
142c8a099c
151bcbd299
hex123b350e

305870094 has 80 divisors (see below), whose sum is σ = 738545280. Its totient is φ = 94303440.

The previous prime is 305870057. The next prime is 305870107. The reversal of 305870094 is 490078503.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 131199 + ... + 133509.

It is an arithmetic number, because the mean of its divisors is an integer number (9231816).

Almost surely, 2305870094 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 305870094, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (369272640).

305870094 is an abundant number, since it is smaller than the sum of its proper divisors (432675186).

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

305870094 is a wasteful number, since it uses less digits than its factorization.

305870094 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2387 (or 2378 counting only the distinct ones).

The product of its (nonzero) digits is 30240, while the sum is 36.

The square root of 305870094 is about 17489.1421745036. The cubic root of 305870094 is about 673.7710378796.

The spelling of 305870094 in words is "three hundred five million, eight hundred seventy thousand, ninety-four".

Divisors: 1 2 3 6 9 18 19 27 38 43 54 57 81 86 114 129 162 171 258 342 387 513 774 817 1026 1161 1539 1634 2311 2322 2451 3078 3483 4622 4902 6933 6966 7353 13866 14706 20799 22059 41598 43909 44118 62397 66177 87818 99373 124794 131727 132354 187191 198746 263454 298119 374382 395181 596238 790362 894357 1185543 1788714 1888087 2371086 2683071 3556629 3776174 5366142 5664261 7113258 8049213 11328522 16098426 16992783 33985566 50978349 101956698 152935047 305870094