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8749285272 = 23327131335361
BaseRepresentation
bin10000010010111111…
…10111111110011000
3211120202022202001200
420021133313332120
5120404304112042
64004103314200
7426546461220
oct101137677630
924522282050
108749285272
11378a81a582
12184214b960
13a9584a4a0
145cddd1080
153631a5c4c
hex2097f7f98

8749285272 has 96 divisors (see below), whose sum is σ = 29164306080. Its totient is φ = 2307502080.

The previous prime is 8749285267. The next prime is 8749285283. The reversal of 8749285272 is 2725829478.

8749285272 is a `hidden beast` number, since 8 + 7 + 492 + 85 + 2 + 72 = 666.

It is a super-3 number, since 3×87492852723 (a number of 31 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 661129 + ... + 674232.

It is an arithmetic number, because the mean of its divisors is an integer number (303794855).

Almost surely, 28749285272 is an apocalyptic number.

It is an amenable number.

8749285272 is an abundant number, since it is smaller than the sum of its proper divisors (20415020808).

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

8749285272 is a wasteful number, since it uses less digits than its factorization.

8749285272 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1335393 (or 1335386 counting only the distinct ones).

The product of its digits is 4515840, while the sum is 54.

The square root of 8749285272 is about 93537.6142094719. The cubic root of 8749285272 is about 2060.5865417480.

The spelling of 8749285272 in words is "eight billion, seven hundred forty-nine million, two hundred eighty-five thousand, two hundred seventy-two".

Divisors: 1 2 3 4 6 7 8 9 12 13 14 18 21 24 26 28 36 39 42 52 56 63 72 78 84 91 104 117 126 156 168 182 234 252 273 312 364 468 504 546 728 819 936 1092 1638 2184 3276 6552 1335361 2670722 4006083 5341444 8012166 9347527 10682888 12018249 16024332 17359693 18695054 24036498 28042581 32048664 34719386 37390108 48072996 52079079 56085162 69438772 74780216 84127743 96145992 104158158 112170324 121517851 138877544 156237237 168255486 208316316 224340648 243035702 312474474 336510972 364553553 416632632 486071404 624948948 673021944 729107106 972142808 1093660659 1249897896 1458214212 2187321318 2916428424 4374642636 8749285272