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303313312020 = 223549191027693
BaseRepresentation
bin1000110100111101110…
…00011101100100010100
31001222220102111201101010
410122132320131210110
514432141201441040
6351201252532220
730625246420215
oct4323670354424
91058812451333
10303313312020
111076a85036a4
124a94b021070
13227aa3c2174
14109751c540c
157d534e0e80
hex469ee1d914

303313312020 has 48 divisors (see below), whose sum is σ = 849450752640. Its totient is φ = 80867028096.

The previous prime is 303313312007. The next prime is 303313312031. The reversal of 303313312020 is 20213313303.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 218707 + ... + 808986.

It is an arithmetic number, because the mean of its divisors is an integer number (17696890680).

Almost surely, 2303313312020 is an apocalyptic number.

303313312020 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

303313312020 is an abundant number, since it is smaller than the sum of its proper divisors (546137440620).

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

303313312020 is a wasteful number, since it uses less digits than its factorization.

303313312020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1032624 (or 1032622 counting only the distinct ones).

The product of its (nonzero) digits is 972, while the sum is 21.

Adding to 303313312020 its reverse (20213313303), we get a palindrome (323526625323).

The spelling of 303313312020 in words is "three hundred three billion, three hundred thirteen million, three hundred twelve thousand, twenty".

Divisors: 1 2 3 4 5 6 10 12 15 20 30 60 4919 9838 14757 19676 24595 29514 49190 59028 73785 98380 147570 295140 1027693 2055386 3083079 4110772 5138465 6166158 10276930 12332316 15415395 20553860 30830790 61661580 5055221867 10110443734 15165665601 20220887468 25276109335 30331331202 50552218670 60662662404 75828328005 101104437340 151656656010 303313312020