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305330830 = 2575717639
BaseRepresentation
bin10010001100101…
…111101010001110
3210021112102011021
4102030233222032
51111131041310
650144144354
710365161230
oct2214575216
9707472137
10305330830
11147395632
12863080ba
134b34633c
142c7a0250
151bc135da
hex1232fa8e

305330830 has 32 divisors (see below), whose sum is σ = 629291520. Its totient is φ = 104487840.

The previous prime is 305330807. The next prime is 305330843. The reversal of 305330830 is 38033503.

It is a junction number, because it is equal to n+sod(n) for n = 305330795 and 305330804.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 36151 + ... + 43789.

It is an arithmetic number, because the mean of its divisors is an integer number (19665360).

Almost surely, 2305330830 is an apocalyptic number.

305330830 is an abundant number, since it is smaller than the sum of its proper divisors (323960690).

305330830 is a wasteful number, since it uses less digits than its factorization.

305330830 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8224.

The product of its (nonzero) digits is 3240, while the sum is 25.

The square root of 305330830 is about 17473.7182648685. The cubic root of 305330830 is about 673.3748411384.

The spelling of 305330830 in words is "three hundred five million, three hundred thirty thousand, eight hundred thirty".

Divisors: 1 2 5 7 10 14 35 70 571 1142 2855 3997 5710 7639 7994 15278 19985 38195 39970 53473 76390 106946 267365 534730 4361869 8723738 21809345 30533083 43618690 61066166 152665415 305330830