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68192028324 = 22327270603287
BaseRepresentation
bin111111100000100011…
…111100011010100100
320112000102022221222200
4333200203330122210
52104124124401244
651154343454500
74632601451130
oct774043743244
9215012287880
1068192028324
1126a13693202
1211271457430
1365799c6024
14342c8663c0
151b91a30669
hexfe08fc6a4

68192028324 has 36 divisors (see below), whose sum is σ = 196999193664. Its totient is φ = 19483436592.

The previous prime is 68192028271. The next prime is 68192028329. The reversal of 68192028324 is 42382029186.

It is a tau number, because it is divible by the number of its divisors (36).

It is a self number, because there is not a number n which added to its sum of digits gives 68192028324.

It is not an unprimeable number, because it can be changed into a prime (68192028329) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 135301392 + ... + 135301895.

It is an arithmetic number, because the mean of its divisors is an integer number (5472199824).

Almost surely, 268192028324 is an apocalyptic number.

It is an amenable number.

68192028324 is an abundant number, since it is smaller than the sum of its proper divisors (128807165340).

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

68192028324 is a wasteful number, since it uses less digits than its factorization.

68192028324 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 270603304 (or 270603299 counting only the distinct ones).

The product of its (nonzero) digits is 331776, while the sum is 45.

The spelling of 68192028324 in words is "sixty-eight billion, one hundred ninety-two million, twenty-eight thousand, three hundred twenty-four".

Divisors: 1 2 3 4 6 7 9 12 14 18 21 28 36 42 63 84 126 252 270603287 541206574 811809861 1082413148 1623619722 1894223009 2435429583 3247239444 3788446018 4870859166 5682669027 7576892036 9741718332 11365338054 17048007081 22730676108 34096014162 68192028324