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304042180 = 225131961547
BaseRepresentation
bin10010000111110…
…101000011000100
3210012002221110111
4102013311003010
51110313322210
650100402404
710351213231
oct2207650304
9705087414
10304042180
11146695432
12859a6404
134acb4920
142c546788
151ba5b88a
hex121f50c4

304042180 has 48 divisors (see below), whose sum is σ = 723804480. Its totient is φ = 106351488.

The previous prime is 304042159. The next prime is 304042187. The reversal of 304042180 is 81240403.

It is not an unprimeable number, because it can be changed into a prime (304042187) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 25834 + ... + 35713.

It is an arithmetic number, because the mean of its divisors is an integer number (15079260).

Almost surely, 2304042180 is an apocalyptic number.

It is an amenable number.

304042180 is an abundant number, since it is smaller than the sum of its proper divisors (419762300).

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

304042180 is a wasteful number, since it uses less digits than its factorization.

304042180 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61588 (or 61586 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 22.

The square root of 304042180 is about 17436.8053266646. The cubic root of 304042180 is about 672.4261781941.

Adding to 304042180 its reverse (81240403), we get a palindrome (385282583).

The spelling of 304042180 in words is "three hundred four million, forty-two thousand, one hundred eighty".

Divisors: 1 2 4 5 10 13 19 20 26 38 52 65 76 95 130 190 247 260 380 494 988 1235 2470 4940 61547 123094 246188 307735 615470 800111 1169393 1230940 1600222 2338786 3200444 4000555 4677572 5846965 8001110 11693930 15202109 16002220 23387860 30404218 60808436 76010545 152021090 304042180