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304160940 = 223351721949
BaseRepresentation
bin10010001000010…
…010000010101100
3210012022222101000
4102020102002230
51110331122230
650103120300
710352216406
oct2210220254
9705288330
10304160940
11146766686
1285a43090
134b0269b5
142c577b76
151ba81b60
hex122120ac

304160940 has 144 divisors (see below), whose sum is σ = 1005732000. Its totient is φ = 76299264.

The previous prime is 304160939. The next prime is 304160951. The reversal of 304160940 is 49061403.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 155086 + ... + 157034.

It is an arithmetic number, because the mean of its divisors is an integer number (6984250).

Almost surely, 2304160940 is an apocalyptic number.

304160940 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 304160940, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (502866000).

304160940 is an abundant number, since it is smaller than the sum of its proper divisors (701571060).

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

304160940 is a wasteful number, since it uses less digits than its factorization.

304160940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2001 (or 1976 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 27.

The square root of 304160940 is about 17440.2104345102. The cubic root of 304160940 is about 672.5137175148.

The spelling of 304160940 in words is "three hundred four million, one hundred sixty thousand, nine hundred forty".

Divisors: 1 2 3 4 5 6 9 10 12 15 17 18 20 27 30 34 36 45 51 54 60 68 85 90 102 108 135 153 170 180 204 255 270 289 306 340 459 510 540 578 612 765 867 918 1020 1156 1445 1530 1734 1836 1949 2295 2601 2890 3060 3468 3898 4335 4590 5202 5780 5847 7796 7803 8670 9180 9745 10404 11694 13005 15606 17340 17541 19490 23388 26010 29235 31212 33133 35082 38980 39015 52020 52623 58470 66266 70164 78030 87705 99399 105246 116940 132532 156060 165665 175410 198798 210492 263115 298197 331330 350820 397596 496995 526230 563261 596394 662660 894591 993990 1052460 1126522 1192788 1490985 1689783 1789182 1987980 2253044 2816305 2981970 3379566 3578364 4472955 5069349 5632610 5963940 6759132 8448915 8945910 10138698 11265220 15208047 16897830 17891820 20277396 25346745 30416094 33795660 50693490 60832188 76040235 101386980 152080470 304160940