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304420164 = 22337685631
BaseRepresentation
bin10010001001010…
…001010101000100
3210012211010221220
4102021101111010
51110412421124
650112440340
710354346226
oct2211212504
9705733856
10304420164
11146923414
1285b490b0
134b0b7999
142c604416
151bad3879
hex12251544

304420164 has 24 divisors (see below), whose sum is σ = 729512448. Its totient is φ = 98730720.

The previous prime is 304420063. The next prime is 304420169. The reversal of 304420164 is 461024403.

It is a super-3 number, since 3×3044201643 (a number of 26 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (304420169) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 342372 + ... + 343259.

It is an arithmetic number, because the mean of its divisors is an integer number (30396352).

Almost surely, 2304420164 is an apocalyptic number.

It is an amenable number.

304420164 is an abundant number, since it is smaller than the sum of its proper divisors (425092284).

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

304420164 is a wasteful number, since it uses less digits than its factorization.

304420164 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 685675 (or 685673 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 24.

The square root of 304420164 is about 17447.6406427918. The cubic root of 304420164 is about 672.7047152960.

Adding to 304420164 its reverse (461024403), we get a palindrome (765444567).

The spelling of 304420164 in words is "three hundred four million, four hundred twenty thousand, one hundred sixty-four".

Divisors: 1 2 3 4 6 12 37 74 111 148 222 444 685631 1371262 2056893 2742524 4113786 8227572 25368347 50736694 76105041 101473388 152210082 304420164