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305060080 = 2451347792
BaseRepresentation
bin10010001011101…
…101100011110000
3210021000122202111
4102023231203300
51111043410310
650134255104
710362652663
oct2213554360
9707018674
10305060080
11147220176
12861b7494
134b280030
142c72d6da
151bbad28a
hex122ed8f0

305060080 has 120 divisors (see below), whose sum is σ = 790074432. Its totient is φ = 108845568.

The previous prime is 305060059. The next prime is 305060081. The reversal of 305060080 is 80060503.

305060080 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (305060081) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3861481 + ... + 3861559.

Almost surely, 2305060080 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 305060080, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (395037216).

305060080 is an abundant number, since it is smaller than the sum of its proper divisors (485014352).

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

305060080 is a wasteful number, since it uses less digits than its factorization.

305060080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 231 (or 146 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 22.

The square root of 305060080 is about 17465.9691972704. The cubic root of 305060080 is about 673.1757454515.

The spelling of 305060080 in words is "three hundred five million, sixty thousand, eighty".

Divisors: 1 2 4 5 8 10 13 16 20 26 40 47 52 65 79 80 94 104 130 158 188 208 235 260 316 376 395 470 520 611 632 752 790 940 1027 1040 1222 1264 1580 1880 2054 2444 3055 3160 3713 3760 4108 4888 5135 6110 6241 6320 7426 8216 9776 10270 12220 12482 14852 16432 18565 20540 24440 24964 29704 31205 37130 41080 48269 48880 49928 59408 62410 74260 81133 82160 96538 99856 124820 148520 162266 193076 241345 249640 293327 297040 324532 386152 405665 482690 499280 586654 649064 772304 811330 965380 1173308 1298128 1466635 1622660 1930760 2346616 2933270 3245320 3813251 3861520 4693232 5866540 6490640 7626502 11733080 15253004 19066255 23466160 30506008 38132510 61012016 76265020 152530040 305060080