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20010144105 = 325763524267
BaseRepresentation
bin10010101000101100…
…101001000101101001
31220122112121122100100
4102220230221011221
5311440044102410
613105330500013
71305604263360
oct225054510551
956575548310
1020010144105
118539228486
123a65434609
131b6b819c73
14d7b7a67d7
157c1ac18c0
hex4a8b29169

20010144105 has 24 divisors (see below), whose sum is σ = 39639143232. Its totient is φ = 9147494304.

The previous prime is 20010144047. The next prime is 20010144113. The reversal of 20010144105 is 50144101002.

It is not a de Polignac number, because 20010144105 - 213 = 20010135913 is a prime.

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, 31761819 + ... + 31762448.

It is an arithmetic number, because the mean of its divisors is an integer number (1651630968).

Almost surely, 220010144105 is an apocalyptic number.

It is an amenable number.

20010144105 is a deficient number, since it is larger than the sum of its proper divisors (19628999127).

20010144105 is a wasteful number, since it uses less digits than its factorization.

20010144105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63524285 (or 63524282 counting only the distinct ones).

The product of its (nonzero) digits is 160, while the sum is 18.

Adding to 20010144105 its reverse (50144101002), we get a palindrome (70154245107).

The spelling of 20010144105 in words is "twenty billion, ten million, one hundred forty-four thousand, one hundred five".

Divisors: 1 3 5 7 9 15 21 35 45 63 105 315 63524267 190572801 317621335 444669869 571718403 952864005 1334009607 2223349345 2858592015 4002028821 6670048035 20010144105