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305380068 = 223710933353
BaseRepresentation
bin10010001100111…
…011101011100100
3210021121220200220
4102030323223210
51111134130233
650145204340
710365454620
oct2214735344
9707556626
10305380068
11147419624
12863306b0
134b362886
142c7b4180
151bc22eb3
hex1233bae4

305380068 has 48 divisors (see below), whose sum is σ = 821842560. Its totient is φ = 86448384.

The previous prime is 305380067. The next prime is 305380073. The reversal of 305380068 is 860083503.

It is not an unprimeable number, because it can be changed into a prime (305380067) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7521 + ... + 25832.

It is an arithmetic number, because the mean of its divisors is an integer number (17121720).

Almost surely, 2305380068 is an apocalyptic number.

It is an amenable number.

305380068 is an abundant number, since it is smaller than the sum of its proper divisors (516462492).

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

305380068 is a wasteful number, since it uses less digits than its factorization.

305380068 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33476 (or 33474 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 33.

The square root of 305380068 is about 17475.1271240011. The cubic root of 305380068 is about 673.4110355928.

The spelling of 305380068 in words is "three hundred five million, three hundred eighty thousand, sixty-eight".

Divisors: 1 2 3 4 6 7 12 14 21 28 42 84 109 218 327 436 654 763 1308 1526 2289 3052 4578 9156 33353 66706 100059 133412 200118 233471 400236 466942 700413 933884 1400826 2801652 3635477 7270954 10906431 14541908 21812862 25448339 43625724 50896678 76345017 101793356 152690034 305380068