Search a number
-
+
8968888968 = 23313171690967
BaseRepresentation
bin10000101101001011…
…00110001010001000
3212011001112202200220
420112211212022020
5121332013421333
64041550230040
7435154204224
oct102645461210
925131482626
108968888968
113892782036
1218a37b5320
13acc1a96c0
14611237784
153775d38b3
hex216966288

8968888968 has 64 divisors (see below), whose sum is σ = 25567436160. Its totient is φ = 2597323776.

The previous prime is 8968888967. The next prime is 8968888979. The reversal of 8968888968 is 8698888698.

It is a Harshad number since it is a multiple of its sum of digits (78).

8968888968 is a strobogrammatic number because it is the same when read upside-down.

It is a junction number, because it is equal to n+sod(n) for n = 8968888893 and 8968888902.

It is not an unprimeable number, because it can be changed into a prime (8968888967) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 840180 + ... + 850787.

It is an arithmetic number, because the mean of its divisors is an integer number (399491190).

Almost surely, 28968888968 is an apocalyptic number.

It is an amenable number.

8968888968 is an abundant number, since it is smaller than the sum of its proper divisors (16598547192).

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

8968888968 is a wasteful number, since it uses less digits than its factorization.

8968888968 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1691006 (or 1691002 counting only the distinct ones).

The product of its digits is 764411904, while the sum is 78.

The square root of 8968888968 is about 94704.2183221001. The cubic root of 8968888968 is about 2077.6842576896.

The spelling of 8968888968 in words is "eight billion, nine hundred sixty-eight million, eight hundred eighty-eight thousand, nine hundred sixty-eight".

Divisors: 1 2 3 4 6 8 12 13 17 24 26 34 39 51 52 68 78 102 104 136 156 204 221 312 408 442 663 884 1326 1768 2652 5304 1690967 3381934 5072901 6763868 10145802 13527736 20291604 21982571 28746439 40583208 43965142 57492878 65947713 86239317 87930284 114985756 131895426 172478634 175860568 229971512 263790852 344957268 373703707 527581704 689914536 747407414 1121111121 1494814828 2242222242 2989629656 4484444484 8968888968