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20578124214 = 2321817738171
BaseRepresentation
bin10011001010100011…
…010100000110110110
31222010010101000120200
4103022203110012312
5314120444433324
613241540341330
71325642112144
oct231243240666
958103330520
1020578124214
1187aa8a632a
123ba36a4846
131c2c3b437b
14dd2db6594
158068b6ec9
hex4ca8d41b6

20578124214 has 48 divisors (see below), whose sum is σ = 44895758544. Its totient is φ = 6811819200.

The previous prime is 20578124197. The next prime is 20578124221. The reversal of 20578124214 is 41242187502.

20578124214 is a `hidden beast` number, since 20 + 578 + 12 + 42 + 14 = 666.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2514349 + ... + 2522519.

It is an arithmetic number, because the mean of its divisors is an integer number (935328303).

Almost surely, 220578124214 is an apocalyptic number.

20578124214 is an abundant number, since it is smaller than the sum of its proper divisors (24317634330).

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

20578124214 is a wasteful number, since it uses less digits than its factorization.

20578124214 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9133 (or 9130 counting only the distinct ones).

The product of its (nonzero) digits is 35840, while the sum is 36.

The spelling of 20578124214 in words is "twenty billion, five hundred seventy-eight million, one hundred twenty-four thousand, two hundred fourteen".

Divisors: 1 2 3 6 9 18 181 362 543 773 1086 1546 1629 2319 3258 4638 6957 8171 13914 16342 24513 49026 73539 139913 147078 279826 419739 839478 1259217 1478951 2518434 2957902 4436853 6316183 8873706 12632366 13310559 18948549 26621118 37897098 56845647 113691294 1143229123 2286458246 3429687369 6859374738 10289062107 20578124214