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68812603195 = 572717254887
BaseRepresentation
bin100000000010110001…
…1001111111100111011
320120121200001102200011
41000011203033330323
52111412011300240
651340112522351
74654145322250
oct1000543177473
9216550042604
1068812603195
1127201a142a6
12114052503b7
1366484468ab
14348b047427
151bcb2646ea
hex10058cff3b

68812603195 has 16 divisors (see below), whose sum is σ = 94719817728. Its totient is φ = 47011661280.

The previous prime is 68812603141. The next prime is 68812603253. The reversal of 68812603195 is 59130621886.

It is not a de Polignac number, because 68812603195 - 221 = 68810506043 is a prime.

It is a Duffinian 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 15 ways as a sum of consecutive naturals, for example, 3617959 + ... + 3636928.

It is an arithmetic number, because the mean of its divisors is an integer number (5919988608).

Almost surely, 268812603195 is an apocalyptic number.

68812603195 is a deficient number, since it is larger than the sum of its proper divisors (25907214533).

68812603195 is a wasteful number, since it uses less digits than its factorization.

68812603195 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7255170.

The product of its (nonzero) digits is 622080, while the sum is 49.

The spelling of 68812603195 in words is "sixty-eight billion, eight hundred twelve million, six hundred three thousand, one hundred ninety-five".

Divisors: 1 5 7 35 271 1355 1897 9485 7254887 36274435 50784209 253921045 1966074377 9830371885 13762520639 68812603195