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30223116 = 223271110903
BaseRepresentation
bin111001101001…
…0101100001100
32002212111022200
41303102230030
530214114431
62555441500
7514615020
oct163225414
962774280
1030223116
1116073090
12a156290
136352701
14402a380
1529beee6
hex1cd2b0c

30223116 has 72 divisors (see below), whose sum is σ = 95257344. Its totient is φ = 7849440.

The previous prime is 30223111. The next prime is 30223147. The reversal of 30223116 is 61132203.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (30223111) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2680 + ... + 8223.

Almost surely, 230223116 is an apocalyptic number.

30223116 is a gapful number since it is divisible by the number (36) formed by its first and last digit.

It is an amenable number.

30223116 is an abundant number, since it is smaller than the sum of its proper divisors (65034228).

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

30223116 is a wasteful number, since it uses less digits than its factorization.

30223116 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10931 (or 10926 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

The square root of 30223116 is about 5497.5554567462. Note that the first 3 decimals coincide. The cubic root of 30223116 is about 311.4916524657.

Adding to 30223116 its reverse (61132203), we get a palindrome (91355319).

The spelling of 30223116 in words is "thirty million, two hundred twenty-three thousand, one hundred sixteen".

Divisors: 1 2 3 4 6 7 9 11 12 14 18 21 22 28 33 36 42 44 63 66 77 84 99 126 132 154 198 231 252 308 396 462 693 924 1386 2772 10903 21806 32709 43612 65418 76321 98127 119933 130836 152642 196254 228963 239866 305284 359799 392508 457926 479732 686889 719598 839531 915852 1079397 1373778 1439196 1679062 2158794 2518593 2747556 3358124 4317588 5037186 7555779 10074372 15111558 30223116