Base | Representation |
---|---|
bin | 10111100010101101011… |
… | …10111110110101010111 |
3 | 2212022221021000020201212 |
4 | 23301112232332311113 |
5 | 101223121201230330 |
6 | 1415335131212035 |
7 | 112304343056630 |
oct | 13612656766527 |
9 | 2768837006655 |
10 | 808909008215 |
11 | 292069057500 |
12 | 110931ba701b |
13 | 5b38391b479 |
14 | 2b219652887 |
15 | 160954e8295 |
hex | bc56bbed57 |
808909008215 has 48 divisors (see below), whose sum is σ = 1222028216640. Its totient is φ = 503159923200.
The previous prime is 808909008169. The next prime is 808909008223. The reversal of 808909008215 is 512800909808.
It is not a de Polignac number, because 808909008215 - 224 = 808892230999 is a prime.
It is a Smith number, since the sum of its digits (50) coincides with the sum of the digits of its prime factors.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1745171 + ... + 2159499.
It is an arithmetic number, because the mean of its divisors is an integer number (25458921180).
Almost surely, 2808909008215 is an apocalyptic number.
808909008215 is a deficient number, since it is larger than the sum of its proper divisors (413119208425).
808909008215 is a wasteful number, since it uses less digits than its factorization.
808909008215 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 414824 (or 414813 counting only the distinct ones).
The product of its (nonzero) digits is 414720, while the sum is 50.
The spelling of 808909008215 in words is "eight hundred eight billion, nine hundred nine million, eight thousand, two hundred fifteen".
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