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21010141305 = 3251751795303
BaseRepresentation
bin10011100100010011…
…010101000001111001
32000020020021202121200
4103210103111001321
5321012044010210
613352452124413
71342436153166
oct234423250171
960206252550
1021010141305
118a0174a14a
1240a4306709
131c9aa55a9a
14103451306d
1582e7a20c0
hex4e44d5079

21010141305 has 48 divisors (see below), whose sum is σ = 38574506880. Its totient is φ = 10542242304.

The previous prime is 21010141259. The next prime is 21010141351. The reversal of 21010141305 is 50314101012.

21010141305 is a `hidden beast` number, since 210 + 10 + 141 + 305 = 666.

It is an interprime number because it is at equal distance from previous prime (21010141259) and next prime (21010141351).

It is not a de Polignac number, because 21010141305 - 28 = 21010141049 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 3959284 + ... + 3964586.

It is an arithmetic number, because the mean of its divisors is an integer number (803635560).

Almost surely, 221010141305 is an apocalyptic number.

It is an amenable number.

21010141305 is a deficient number, since it is larger than the sum of its proper divisors (17564365575).

21010141305 is a wasteful number, since it uses less digits than its factorization.

21010141305 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10510 (or 10507 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 18.

Adding to 21010141305 its reverse (50314101012), we get a palindrome (71324242317).

The spelling of 21010141305 in words is "twenty-one billion, ten million, one hundred forty-one thousand, three hundred five".

Divisors: 1 3 5 9 15 17 45 51 85 153 255 765 5179 5303 15537 15909 25895 26515 46611 47727 77685 79545 88043 90151 233055 238635 264129 270453 440215 450755 792387 811359 1320645 1352265 3961935 4056795 27464237 82392711 137321185 247178133 411963555 466892029 1235890665 1400676087 2334460145 4202028261 7003380435 21010141305