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30779286050 = 2524325772
BaseRepresentation
bin11100101010100101…
…101010001000100010
32221110001122201212102
4130222211222020202
51001013444123200
622050110530402
72136511420562
oct345245521042
987401581772
1030779286050
1112065117197
125b6bb06a02
132b969748c6
1416bdb40da2
15c0225d6d5
hex72a96a222

30779286050 has 54 divisors (see below), whose sum is σ = 58713573843. Its totient is φ = 12004554240.

The previous prime is 30779286023. The next prime is 30779286059. The reversal of 30779286050 is 5068297703.

It can be written as a sum of positive squares in 5 ways, for example, as 29244762121 + 1534523929 = 171011^2 + 39173^2 .

It is an ABA number since it can be written as A⋅BA, here for A=2, B=124055.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 30779285986 and 30779286004.

It is not an unprimeable number, because it can be changed into a prime (30779286059) by changing a digit.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 53343362 + ... + 53343938.

Almost surely, 230779286050 is an apocalyptic number.

30779286050 is a deficient number, since it is larger than the sum of its proper divisors (27934287793).

30779286050 is an frugal number, since it uses more digits than its factorization.

30779286050 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1252 (or 627 counting only the distinct ones).

The product of its (nonzero) digits is 635040, while the sum is 47.

The spelling of 30779286050 in words is "thirty billion, seven hundred seventy-nine million, two hundred eighty-six thousand, fifty".

Divisors: 1 2 5 10 25 43 50 86 215 430 577 1075 1154 1849 2150 2885 3698 5770 9245 14425 18490 24811 28850 46225 49622 92450 124055 248110 332929 620275 665858 1066873 1240550 1664645 2133746 3329290 5334365 8323225 10668730 14315947 16646450 26671825 28631894 53343650 71579735 143159470 357898675 615585721 715797350 1231171442 3077928605 6155857210 15389643025 30779286050