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68332269888 = 26322310350077
BaseRepresentation
bin111111101000111010…
…111011000101000000
320112101012012222020200
4333220322323011000
52104421030114023
651220313405200
74636223465511
oct775072730500
9215335188220
1068332269888
1126a8586a823
12112b0409800
13659ca892bc
143443330a08
151b9ded3743
hexfe8ebb140

68332269888 has 168 divisors, whose sum is σ = 206366229888. Its totient is φ = 21575144448.

The previous prime is 68332269851. The next prime is 68332269949. The reversal of 68332269888 is 88896223386.

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1339506 + ... + 1389582.

It is an arithmetic number, because the mean of its divisors is an integer number (1228370416).

Almost surely, 268332269888 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 68332269888, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (103183114944).

68332269888 is an abundant number, since it is smaller than the sum of its proper divisors (138033960000).

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

68332269888 is a wasteful number, since it uses less digits than its factorization.

68332269888 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50221 (or 50208 counting only the distinct ones).

The product of its digits is 47775744, while the sum is 63.

The spelling of 68332269888 in words is "sixty-eight billion, three hundred thirty-two million, two hundred sixty-nine thousand, eight hundred eighty-eight".