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30160872 = 23327283103
BaseRepresentation
bin111001100001…
…1011111101000
32002202022221100
41303003133220
530210121442
62554241400
7514235400
oct163033750
962668840
1030160872
1116030345
12a126260
136330291
144011800
1529ab84c
hex1cc37e8

30160872 has 144 divisors (see below), whose sum is σ = 97100640. Its totient is φ = 8430912.

The previous prime is 30160853. The next prime is 30160927. The reversal of 30160872 is 27806103.

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 292773 + ... + 292875.

It is an arithmetic number, because the mean of its divisors is an integer number (674310).

Almost surely, 230160872 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 30160872, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (48550320).

30160872 is an abundant number, since it is smaller than the sum of its proper divisors (66939768).

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

30160872 is a wasteful number, since it uses less digits than its factorization.

30160872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 212 (or 198 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 27.

The square root of 30160872 is about 5491.8914774420. The cubic root of 30160872 is about 311.2776682231.

Adding to 30160872 its reverse (27806103), we get a palindrome (57966975).

The spelling of 30160872 in words is "thirty million, one hundred sixty thousand, eight hundred seventy-two".

Divisors: 1 2 3 4 6 7 8 9 12 14 18 21 24 28 36 42 49 56 63 72 83 84 98 103 126 147 166 168 196 206 249 252 294 309 332 392 412 441 498 504 581 588 618 664 721 747 824 882 927 996 1162 1176 1236 1442 1494 1743 1764 1854 1992 2163 2324 2472 2884 2988 3486 3528 3708 4067 4326 4648 5047 5229 5768 5976 6489 6972 7416 8134 8549 8652 10094 10458 12201 12978 13944 15141 16268 17098 17304 20188 20916 24402 25647 25956 30282 32536 34196 36603 40376 41832 45423 48804 51294 51912 59843 60564 68392 73206 76941 90846 97608 102588 119686 121128 146412 153882 179529 181692 205176 239372 292824 307764 359058 363384 418901 478744 538587 615528 718116 837802 1077174 1256703 1436232 1675604 2154348 2513406 3351208 3770109 4308696 5026812 7540218 10053624 15080436 30160872