Search a number
-
+
8904271968 = 2532179711873
BaseRepresentation
bin10000100101011110…
…00110100001100000
3211222112221212211200
420102233012201200
5121213443200333
64031321241200
7433441030404
oct102257064140
924875855750
108904271968
11385a258359
121886033200
13abb9a40a7
14606817104
15371abcc13
hex212bc6860

8904271968 has 144 divisors (see below), whose sum is σ = 26852965776. Its totient is φ = 2789130240.

The previous prime is 8904271921. The next prime is 8904271979. The reversal of 8904271968 is 8691724098.

It is a tau number, because it is divible by the number of its divisors (144).

It is a super-2 number, since 2×89042719682 (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4753080 + ... + 4754952.

It is an arithmetic number, because the mean of its divisors is an integer number (186478929).

Almost surely, 28904271968 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 8904271968, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13426482888).

8904271968 is an abundant number, since it is smaller than the sum of its proper divisors (17948693808).

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

8904271968 is a wasteful number, since it uses less digits than its factorization.

8904271968 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2877 (or 2866 counting only the distinct ones).

The product of its (nonzero) digits is 1741824, while the sum is 54.

The square root of 8904271968 is about 94362.4499893893. The cubic root of 8904271968 is about 2072.6826187140.

The spelling of 8904271968 in words is "eight billion, nine hundred four million, two hundred seventy-one thousand, nine hundred sixty-eight".

Divisors: 1 2 3 4 6 8 9 12 16 17 18 24 32 34 36 48 51 68 72 96 102 136 144 153 204 272 288 306 408 544 612 816 971 1224 1632 1873 1942 2448 2913 3746 3884 4896 5619 5826 7492 7768 8739 11238 11652 14984 15536 16507 16857 17478 22476 23304 29968 31072 31841 33014 33714 34956 44952 46608 49521 59936 63682 66028 67428 69912 89904 93216 95523 99042 127364 132056 134856 139824 148563 179808 191046 198084 254728 264112 269712 279648 286569 297126 382092 396168 509456 528224 539424 573138 594252 764184 792336 1018912 1146276 1188504 1528368 1584672 1818683 2292552 2377008 3056736 3637366 4585104 4754016 5456049 7274732 9170208 10912098 14549464 16368147 21824196 29098928 30917611 32736294 43648392 58197856 61835222 65472588 87296784 92752833 123670444 130945176 174593568 185505666 247340888 261890352 278258499 371011332 494681776 523780704 556516998 742022664 989363552 1113033996 1484045328 2226067992 2968090656 4452135984 8904271968