Base | Representation |
---|---|
bin | 11000000101010000… |
… | …00011101010001111 |
3 | 1020101001010001212220 |
4 | 30002220003222033 |
5 | 202434303111241 |
6 | 5534532230423 |
7 | 635251215252 |
oct | 140250035217 |
9 | 36331101786 |
10 | 12928957071 |
11 | 5535071898 |
12 | 2609a6b413 |
13 | 12b0759574 |
14 | 8a9155099 |
15 | 50a0bc166 |
hex | 302a03a8f |
12928957071 has 16 divisors (see below), whose sum is σ = 17609147904. Its totient is φ = 8434113984.
The previous prime is 12928957057. The next prime is 12928957091. The reversal of 12928957071 is 17075982921.
It is not a de Polignac number, because 12928957071 - 29 = 12928956559 is a prime.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (12928957001) 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, 1087260 + ... + 1099086.
It is an arithmetic number, because the mean of its divisors is an integer number (1100571744).
Almost surely, 212928957071 is an apocalyptic number.
12928957071 is a deficient number, since it is larger than the sum of its proper divisors (4680190833).
12928957071 is a wasteful number, since it uses less digits than its factorization.
12928957071 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 19630.
The product of its (nonzero) digits is 635040, while the sum is 51.
The spelling of 12928957071 in words is "twelve billion, nine hundred twenty-eight million, nine hundred fifty-seven thousand, seventy-one".
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