Base | Representation |
---|---|
bin | 10000110101001000… |
… | …110010110110110010 |
3 | 1201122102110120021020 |
4 | 100311020302312302 |
5 | 244002232221330 |
6 | 12145112040310 |
7 | 1206553041300 |
oct | 206510626662 |
9 | 51572416236 |
10 | 18071367090 |
11 | 77338a7627 |
12 | 3604093096 |
13 | 191cc5a42a |
14 | c360c7270 |
15 | 70b7a4210 |
hex | 435232db2 |
18071367090 has 48 divisors (see below), whose sum is σ = 50452310592. Its totient is φ = 4130597856.
The previous prime is 18071367073. The next prime is 18071367103. The reversal of 18071367090 is 9076317081.
It is a Harshad number since it is a multiple of its sum of digits (42).
It is an unprimeable number.
It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 6145254 + ... + 6148193.
It is an arithmetic number, because the mean of its divisors is an integer number (1051089804).
Almost surely, 218071367090 is an apocalyptic number.
18071367090 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
18071367090 is an abundant number, since it is smaller than the sum of its proper divisors (32380943502).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
18071367090 is a wasteful number, since it uses less digits than its factorization.
18071367090 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 12293471 (or 12293464 counting only the distinct ones).
The product of its (nonzero) digits is 63504, while the sum is 42.
The spelling of 18071367090 in words is "eighteen billion, seventy-one million, three hundred sixty-seven thousand, ninety".
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