Base | Representation |
---|---|
bin | 110001001000… |
… | …100000011101 |
3 | 220020100220101 |
4 | 301020200131 |
5 | 11244124101 |
6 | 1140021101 |
7 | 214322506 |
oct | 61104035 |
9 | 26210811 |
10 | 12879901 |
11 | 72a7951 |
12 | 4391791 |
13 | 288c658 |
14 | 19d3bad |
15 | 11e6401 |
hex | c4881d |
12879901 has 8 divisors (see below), whose sum is σ = 13306680. Its totient is φ = 12460032.
The previous prime is 12879887. The next prime is 12879913. The reversal of 12879901 is 10997821.
It can be written as a sum of positive squares in 4 ways, for example, as 2805625 + 10074276 = 1675^2 + 3174^2 .
It is a sphenic number, since it is the product of 3 distinct primes.
It is a cyclic number.
It is not a de Polignac number, because 12879901 - 27 = 12879773 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 (12879941) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2205 + ... + 5533.
It is an arithmetic number, because the mean of its divisors is an integer number (1663335).
Almost surely, 212879901 is an apocalyptic number.
It is an amenable number.
12879901 is a deficient number, since it is larger than the sum of its proper divisors (426779).
12879901 is an equidigital number, since it uses as much as digits as its factorization.
12879901 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 3455.
The product of its (nonzero) digits is 9072, while the sum is 37.
The square root of 12879901 is about 3588.8578963230. The cubic root of 12879901 is about 234.4071429931.
The spelling of 12879901 in words is "twelve million, eight hundred seventy-nine thousand, nine hundred one".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.065 sec. • engine limits •