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30120033320 = 2351357923141
BaseRepresentation
bin11100000011010010…
…110011110000101000
32212202010011020010122
4130003102303300220
5443141212031240
621500440502412
72114255026136
oct340322636050
985663136118
1030120033320
1111856a78923
125a0717aa08
132ac0201230
14165a372756
15bb44394b5
hex7034b3c28

30120033320 has 32 divisors (see below), whose sum is σ = 72983158920. Its totient is φ = 11121242880.

The previous prime is 30120033259. The next prime is 30120033343. The reversal of 30120033320 is 2333002103.

It can be written as a sum of positive squares in 4 ways, for example, as 15196479076 + 14923554244 = 123274^2 + 122162^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 28961051 + ... + 28962090.

Almost surely, 230120033320 is an apocalyptic number.

It is an amenable number.

30120033320 is an abundant number, since it is smaller than the sum of its proper divisors (42863125600).

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

30120033320 is a wasteful number, since it uses less digits than its factorization.

30120033320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57923165 (or 57923161 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 17.

Adding to 30120033320 its reverse (2333002103), we get a palindrome (32453035423).

The spelling of 30120033320 in words is "thirty billion, one hundred twenty million, thirty-three thousand, three hundred twenty".

Divisors: 1 2 4 5 8 10 13 20 26 40 52 65 104 130 260 520 57923141 115846282 231692564 289615705 463385128 579231410 753000833 1158462820 1506001666 2316925640 3012003332 3765004165 6024006664 7530008330 15060016660 30120033320