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128493407214 = 23319125237239
BaseRepresentation
bin111011110101011001…
…1011100101111101110
3110021122221000101212000
41313222303130233232
54101123303012324
6135010135353130
712166120640364
oct1675263345756
9407587011760
10128493407214
114a5481a6727
1220aa02227a6
13c169a14803
14630d36b634
1535209659c9
hex1deacdcbee

128493407214 has 32 divisors (see below), whose sum is σ = 300569376000. Its totient is φ = 40576865112.

The previous prime is 128493407213. The next prime is 128493407219. The reversal of 128493407214 is 412704394821.

128493407214 is a `hidden beast` number, since 1 + 28 + 4 + 9 + 3 + 407 + 214 = 666.

It is a self number, because there is not a number n which added to its sum of digits gives 128493407214.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (128493407213) 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, 62617594 + ... + 62619645.

It is an arithmetic number, because the mean of its divisors is an integer number (9392793000).

Almost surely, 2128493407214 is an apocalyptic number.

128493407214 is an abundant number, since it is smaller than the sum of its proper divisors (172075968786).

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

128493407214 is a wasteful number, since it uses less digits than its factorization.

128493407214 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 125237269 (or 125237263 counting only the distinct ones).

The product of its (nonzero) digits is 387072, while the sum is 45.

The spelling of 128493407214 in words is "one hundred twenty-eight billion, four hundred ninety-three million, four hundred seven thousand, two hundred fourteen".

Divisors: 1 2 3 6 9 18 19 27 38 54 57 114 171 342 513 1026 125237239 250474478 375711717 751423434 1127135151 2254270302 2379507541 3381405453 4759015082 6762810906 7138522623 14277045246 21415567869 42831135738 64246703607 128493407214