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304380000 = 2532541989
BaseRepresentation
bin10010001001000…
…111100001100000
3210012202002212100
4102021013201200
51110410130000
650111530400
710354121151
oct2211074140
9705662770
10304380000
111468a6221
1285b29a00
134b0a2612
142c5d3928
151bac6a00
hex12247860

304380000 has 360 divisors, whose sum is σ = 1151350200. Its totient is φ = 76032000.

The previous prime is 304379989. The next prime is 304380017. The reversal of 304380000 is 83403.

It is a tau number, because it is divible by the number of its divisors (360).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 59 ways as a sum of consecutive naturals, for example, 3419956 + ... + 3420044.

It is an arithmetic number, because the mean of its divisors is an integer number (3198195).

Almost surely, 2304380000 is an apocalyptic number.

304380000 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 304380000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (575675100).

304380000 is an abundant number, since it is smaller than the sum of its proper divisors (846970200).

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

304380000 is a wasteful number, since it uses less digits than its factorization.

304380000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 144 (or 118 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 304380000 is about 17446.4896182585. The cubic root of 304380000 is about 672.6751293228.

The spelling of 304380000 in words is "three hundred four million, three hundred eighty thousand".