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68193325488 = 24312231161647
BaseRepresentation
bin111111100000101000…
…111001000110110000
320112000111202212100210
4333200220321012300
52104124442403423
651154431344120
74632615463011
oct774050710660
9215014685323
1068193325488
1126a14399842
1211271982040
13657a05b592
14342cac3008
151b91bd9b93
hexfe0a391b0

68193325488 has 40 divisors (see below), whose sum is σ = 176310286848. Its totient is φ = 22712502592.

The previous prime is 68193325471. The next prime is 68193325511. The reversal of 68193325488 is 88452339186.

It is a super-2 number, since 2×681933254882 (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 522120 + ... + 639527.

Almost surely, 268193325488 is an apocalyptic number.

It is an amenable number.

68193325488 is an abundant number, since it is smaller than the sum of its proper divisors (108116961360).

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

68193325488 is a wasteful number, since it uses less digits than its factorization.

68193325488 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1162881 (or 1162875 counting only the distinct ones).

The product of its digits is 9953280, while the sum is 57.

The spelling of 68193325488 in words is "sixty-eight billion, one hundred ninety-three million, three hundred twenty-five thousand, four hundred eighty-eight".

Divisors: 1 2 3 4 6 8 12 16 24 48 1223 2446 3669 4892 7338 9784 14676 19568 29352 58704 1161647 2323294 3484941 4646588 6969882 9293176 13939764 18586352 27879528 55759056 1420694281 2841388562 4262082843 5682777124 8524165686 11365554248 17048331372 22731108496 34096662744 68193325488