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68825066739 = 31113160431391
BaseRepresentation
bin100000000011001001…
…0110010110011110011
320120122112111122102220
41000012102302303303
52111423204113424
651341240012123
74654356262152
oct1000622626363
9216575448386
1068825066739
1127208a57350
1211409461043
13664abbb880
14348c96d599
151bcc3c7579
hex10064b2cf3

68825066739 has 16 divisors (see below), whose sum is σ = 107809895424. Its totient is φ = 38503533600.

The previous prime is 68825066719. The next prime is 68825066741. The reversal of 68825066739 is 93766052886.

It is a happy number.

It is not a de Polignac number, because 68825066739 - 25 = 68825066707 is a prime.

It is not an unprimeable number, because it can be changed into a prime (68825066719) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 80215267 + ... + 80216124.

It is an arithmetic number, because the mean of its divisors is an integer number (6738118464).

Almost surely, 268825066739 is an apocalyptic number.

68825066739 is a deficient number, since it is larger than the sum of its proper divisors (38984828685).

68825066739 is a wasteful number, since it uses less digits than its factorization.

68825066739 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 160431418.

The product of its (nonzero) digits is 26127360, while the sum is 60.

The spelling of 68825066739 in words is "sixty-eight billion, eight hundred twenty-five million, sixty-six thousand, seven hundred thirty-nine".

Divisors: 1 3 11 13 33 39 143 429 160431391 481294173 1764745301 2085608083 5294235903 6256824249 22941688913 68825066739