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39668611271 = 128354835639
BaseRepresentation
bin100100111100011011…
…101111100011000111
310210101120111020121212
4210330123233203013
51122220131030041
630120140002035
72603011426622
oct447433574307
9123346436555
1039668611271
1115906995863
127830b3031b
133982514663
141cc4586db9
1510728778eb
hex93c6ef8c7

39668611271 has 8 divisors (see below), whose sum is σ = 39713811840. Its totient is φ = 39623435512.

The previous prime is 39668611247. The next prime is 39668611277. The reversal of 39668611271 is 17211686693.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 39668611271 - 230 = 38594869447 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (39668611277) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7031870 + ... + 7037508.

It is an arithmetic number, because the mean of its divisors is an integer number (4964226480).

Almost surely, 239668611271 is an apocalyptic number.

39668611271 is a deficient number, since it is larger than the sum of its proper divisors (45200569).

39668611271 is a wasteful number, since it uses less digits than its factorization.

39668611271 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12405.

The product of its digits is 653184, while the sum is 50.

The spelling of 39668611271 in words is "thirty-nine billion, six hundred sixty-eight million, six hundred eleven thousand, two hundred seventy-one".

Divisors: 1 1283 5483 5639 7034689 7234837 30918637 39668611271