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303033380 = 225136171889
BaseRepresentation
bin10010000011111…
…110110000100100
3210010012200122112
4102003332300210
51110034032010
650023020152
710336512146
oct2203766044
9703180575
10303033380
11146066511
128559a658
134aa206c0
142c362c96
151b90ca05
hex120fec24

303033380 has 48 divisors (see below), whose sum is σ = 686795760. Its totient is φ = 111648768.

The previous prime is 303033373. The next prime is 303033389. The reversal of 303033380 is 83330303.

It is a happy number.

303033380 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 8 ways, for example, as 91738084 + 211295296 = 9578^2 + 14536^2 .

It is not an unprimeable number, because it can be changed into a prime (303033389) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 159476 + ... + 161364.

It is an arithmetic number, because the mean of its divisors is an integer number (14308245).

Almost surely, 2303033380 is an apocalyptic number.

It is an amenable number.

303033380 is an abundant number, since it is smaller than the sum of its proper divisors (383762380).

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

303033380 is a wasteful number, since it uses less digits than its factorization.

303033380 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2528 (or 2526 counting only the distinct ones).

The product of its (nonzero) digits is 1944, while the sum is 23.

The square root of 303033380 is about 17407.8539745714. The cubic root of 303033380 is about 671.6816596171.

Adding to 303033380 its reverse (83330303), we get a palindrome (386363683).

The spelling of 303033380 in words is "three hundred three million, thirty-three thousand, three hundred eighty".

Divisors: 1 2 4 5 10 13 20 26 52 65 130 260 617 1234 1889 2468 3085 3778 6170 7556 8021 9445 12340 16042 18890 24557 32084 37780 40105 49114 80210 98228 122785 160420 245570 491140 1165513 2331026 4662052 5827565 11655130 15151669 23310260 30303338 60606676 75758345 151516690 303033380