Search a number
-
+
30793528612 = 22711217534647
BaseRepresentation
bin11100101011011011…
…111111010100100100
32221111001110022222201
4130223123333110210
51001031120403422
622051340104244
72140043450230
oct345333772444
987431408881
1030793528612
1112072164900
125b74835084
132b998c0562
1416c19ab5c0
15c03623727
hex72b6ff524

30793528612 has 72 divisors (see below), whose sum is σ = 71677049472. Its totient is φ = 11291723520.

The previous prime is 30793528559. The next prime is 30793528613. The reversal of 30793528612 is 21682539703.

It is not an unprimeable number, because it can be changed into a prime (30793528613) 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, 209728 + ... + 324919.

It is an arithmetic number, because the mean of its divisors is an integer number (995514576).

Almost surely, 230793528612 is an apocalyptic number.

It is an amenable number.

30793528612 is an abundant number, since it is smaller than the sum of its proper divisors (40883520860).

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

30793528612 is a wasteful number, since it uses less digits than its factorization.

30793528612 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 534697 (or 534684 counting only the distinct ones).

The product of its (nonzero) digits is 544320, while the sum is 46.

The spelling of 30793528612 in words is "thirty billion, seven hundred ninety-three million, five hundred twenty-eight thousand, six hundred twelve".

Divisors: 1 2 4 7 11 14 17 22 28 34 44 68 77 119 121 154 187 238 242 308 374 476 484 748 847 1309 1694 2057 2618 3388 4114 5236 8228 14399 28798 57596 534647 1069294 2138588 3742529 5881117 7485058 9088999 11762234 14970116 18177998 23524468 36355996 41167819 63622993 64692287 82335638 99978989 127245986 129384574 164671276 199957978 254491972 258769148 399915956 452846009 699852923 905692018 1099768879 1399705846 1811384036 2199537758 2799411692 4399075516 7698382153 15396764306 30793528612