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30480408 = 23337191061
BaseRepresentation
bin111010001000…
…1100000011000
32010100120021000
41310101200120
530300333113
63005145000
7520036110
oct164214030
963316230
1030480408
1116229422
12a25b160
13641285a
144096040
152a21373
hex1d11818

30480408 has 128 divisors (see below), whose sum is σ = 101952000. Its totient is φ = 8242560.

The previous prime is 30480391. The next prime is 30480413. The reversal of 30480408 is 80408403.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 28198 + ... + 29258.

It is an arithmetic number, because the mean of its divisors is an integer number (796500).

Almost surely, 230480408 is an apocalyptic number.

30480408 is a gapful number since it is divisible by the number (38) 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 30480408, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (50976000).

30480408 is an abundant number, since it is smaller than the sum of its proper divisors (71471592).

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

30480408 is a wasteful number, since it uses less digits than its factorization.

30480408 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1102 (or 1092 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 27.

The square root of 30480408 is about 5520.9064473146. The cubic root of 30480408 is about 312.3730744280.

The spelling of 30480408 in words is "thirty million, four hundred eighty thousand, four hundred eight".

Divisors: 1 2 3 4 6 7 8 9 12 14 18 19 21 24 27 28 36 38 42 54 56 57 63 72 76 84 108 114 126 133 152 168 171 189 216 228 252 266 342 378 399 456 504 513 532 684 756 798 1026 1061 1064 1197 1368 1512 1596 2052 2122 2394 3183 3192 3591 4104 4244 4788 6366 7182 7427 8488 9549 9576 12732 14364 14854 19098 20159 22281 25464 28647 28728 29708 38196 40318 44562 57294 59416 60477 66843 76392 80636 89124 114588 120954 133686 141113 161272 178248 181431 200529 229176 241908 267372 282226 362862 401058 423339 483816 534744 544293 564452 725724 802116 846678 1088586 1128904 1270017 1451448 1604232 1693356 2177172 2540034 3386712 3810051 4354344 5080068 7620102 10160136 15240204 30480408