Base | Representation |
---|---|
bin | 10001110101000101011… |
… | …011000100111001011111 |
3 | 11100010112102011111022212 |
4 | 101311011123010321133 |
5 | 130033232440431330 |
6 | 2334510231431035 |
7 | 154343231415515 |
oct | 21650533047137 |
9 | 4303472144285 |
10 | 1225230405215 |
11 | 432687692a53 |
12 | 17955b22547b |
13 | 8b700792a6b |
14 | 4343132a4b5 |
15 | 21d0ec21295 |
hex | 11d456c4e5f |
1225230405215 has 4 divisors (see below), whose sum is σ = 1470276486264. Its totient is φ = 980184324168.
The previous prime is 1225230405137. The next prime is 1225230405233. The reversal of 1225230405215 is 5125040325221.
It is a semiprime because it is the product of two primes.
It is a cyclic number.
It is not a de Polignac number, because 1225230405215 - 224 = 1225213627999 is a prime.
It is a Duffinian number.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 122523040517 + ... + 122523040526.
It is an arithmetic number, because the mean of its divisors is an integer number (367569121566).
Almost surely, 21225230405215 is an apocalyptic number.
1225230405215 is a deficient number, since it is larger than the sum of its proper divisors (245046081049).
1225230405215 is an equidigital number, since it uses as much as digits as its factorization.
1225230405215 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 245046081048.
The product of its (nonzero) digits is 24000, while the sum is 32.
The spelling of 1225230405215 in words is "one trillion, two hundred twenty-five billion, two hundred thirty million, four hundred five thousand, two hundred fifteen".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.070 sec. • engine limits •