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121008387671 = 1960110597109
BaseRepresentation
bin111000010110010101…
…0010111011001010111
3102120100021122000022222
41300230222113121113
53440311121401141
6131331313412555
711512462216103
oct1605452273127
9376307560288
10121008387671
1147357097766
121b55156a15b
13b5460a0272
145bdd238903
15323379214b
hex1c2ca97657

121008387671 has 8 divisors (see below), whose sum is σ = 127589204400. Its totient is φ = 114448766400.

The previous prime is 121008387637. The next prime is 121008387683. The reversal of 121008387671 is 176783800121.

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 121008387671 - 214 = 121008371287 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 (121008387371) 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, 5287136 + ... + 5309973.

It is an arithmetic number, because the mean of its divisors is an integer number (15948650550).

Almost surely, 2121008387671 is an apocalyptic number.

121008387671 is a deficient number, since it is larger than the sum of its proper divisors (6580816729).

121008387671 is a wasteful number, since it uses less digits than its factorization.

121008387671 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10597729.

The product of its (nonzero) digits is 112896, while the sum is 44.

The spelling of 121008387671 in words is "one hundred twenty-one billion, eight million, three hundred eighty-seven thousand, six hundred seventy-one".

Divisors: 1 19 601 11419 10597109 201345071 6368862509 121008387671