Base | Representation |
---|---|
bin | 10111011010110010… |
… | …00111110010001111 |
3 | 1012110012210100212100 |
4 | 23231121013302033 |
5 | 201222104022041 |
6 | 5435325010143 |
7 | 623364234066 |
oct | 135531076217 |
9 | 35405710770 |
10 | 12572720271 |
11 | 5371a77911 |
12 | 252a6b3953 |
13 | 12549cb667 |
14 | 873b031dd |
15 | 4d8ba06b6 |
hex | 2ed647c8f |
12572720271 has 12 divisors (see below), whose sum is σ = 18165501640. Its totient is φ = 8379549360.
The previous prime is 12572720263. The next prime is 12572720273. The reversal of 12572720271 is 17202727521.
It is a happy number.
12572720271 is a `hidden beast` number, since 12 + 572 + 7 + 2 + 0 + 2 + 71 = 666.
It is not a de Polignac number, because 12572720271 - 23 = 12572720263 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 (12572720273) by changing a digit.
It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 153160 + ... + 220461.
Almost surely, 212572720271 is an apocalyptic number.
12572720271 is a deficient number, since it is larger than the sum of its proper divisors (5592781369).
12572720271 is a wasteful number, since it uses less digits than its factorization.
12572720271 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 377366 (or 377363 counting only the distinct ones).
The product of its (nonzero) digits is 27440, while the sum is 36.
The spelling of 12572720271 in words is "twelve billion, five hundred seventy-two million, seven hundred twenty thousand, two hundred seventy-one".
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