Base | Representation |
---|---|
bin | 11000100111110101… |
… | …10101000011011111 |
3 | 1021010021001101100012 |
4 | 30103322311003133 |
5 | 204033041400110 |
6 | 10023414553435 |
7 | 645403262621 |
oct | 142372650337 |
9 | 37107041305 |
10 | 13219090655 |
11 | 5673917511 |
12 | 268b06887b |
13 | 13288b1544 |
14 | 8d58bac11 |
15 | 5257cc905 |
hex | 313eb50df |
13219090655 has 8 divisors (see below), whose sum is σ = 15865142352. Its totient is φ = 10573783488.
The previous prime is 13219090627. The next prime is 13219090657. The reversal of 13219090655 is 55609091231.
It is a happy number.
It is a sphenic number, since it is the product of 3 distinct primes.
It is a cyclic number.
It is a de Polignac number, because none of the positive numbers 2k-13219090655 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 (13219090657) 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, 146294 + ... + 218723.
It is an arithmetic number, because the mean of its divisors is an integer number (1983142794).
Almost surely, 213219090655 is an apocalyptic number.
13219090655 is a deficient number, since it is larger than the sum of its proper divisors (2646051697).
13219090655 is an equidigital number, since it uses as much as digits as its factorization.
13219090655 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 372265.
The product of its (nonzero) digits is 72900, while the sum is 41.
The spelling of 13219090655 in words is "thirteen billion, two hundred nineteen million, ninety thousand, six hundred fifty-five".
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