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304161012 = 223210977513
BaseRepresentation
bin10010001000010…
…010000011110100
3210012022222110200
4102020102003310
51110331123022
650103120500
710352216541
oct2210220364
9705288420
10304161012
11146766741
1285a43130
134b026a3c
142c577bc8
151ba81bac
hex122120f4

304161012 has 36 divisors (see below), whose sum is σ = 775915140. Its totient is φ = 100455552.

The previous prime is 304160999. The next prime is 304161029. The reversal of 304161012 is 210161403.

It is a happy number.

304161012 is a `hidden beast` number, since 3 + 0 + 41 + 610 + 12 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 259725456 + 44435556 = 16116^2 + 6666^2 .

It is a tau number, because it is divible by the number of its divisors (36).

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 11 ways as a sum of consecutive naturals, for example, 34833 + ... + 42680.

Almost surely, 2304161012 is an apocalyptic number.

It is an amenable number.

304161012 is an abundant number, since it is smaller than the sum of its proper divisors (471754128).

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

304161012 is a wasteful number, since it uses less digits than its factorization.

304161012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77632 (or 77627 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

The square root of 304161012 is about 17440.2124987054. The cubic root of 304161012 is about 672.5137705799.

The spelling of 304161012 in words is "three hundred four million, one hundred sixty-one thousand, twelve".

Divisors: 1 2 3 4 6 9 12 18 36 109 218 327 436 654 981 1308 1962 3924 77513 155026 232539 310052 465078 697617 930156 1395234 2790468 8448917 16897834 25346751 33795668 50693502 76040253 101387004 152080506 304161012