Base | Representation |
---|---|
bin | 10000110101000101… |
… | …101001100001010001 |
3 | 1201122100220200000210 |
4 | 100311011221201101 |
5 | 244002024324132 |
6 | 12145042234333 |
7 | 1206543035064 |
oct | 206505514121 |
9 | 51570820023 |
10 | 18070542417 |
11 | 7733393a84 |
12 | 36039559a9 |
13 | 191ca2bc65 |
14 | c35d508db |
15 | 70b68ebcc |
hex | 435169851 |
18070542417 has 16 divisors (see below), whose sum is σ = 24686085312. Its totient is φ = 11751118080.
The previous prime is 18070542407. The next prime is 18070542419. The reversal of 18070542417 is 71424507081.
It is not a de Polignac number, because 18070542417 - 216 = 18070476881 is a prime.
It is not an unprimeable number, because it can be changed into a prime (18070542419) by changing a digit.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1011678 + ... + 1029384.
It is an arithmetic number, because the mean of its divisors is an integer number (1542880332).
Almost surely, 218070542417 is an apocalyptic number.
It is an amenable number.
18070542417 is a deficient number, since it is larger than the sum of its proper divisors (6615542895).
18070542417 is a wasteful number, since it uses less digits than its factorization.
18070542417 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 26048.
The product of its (nonzero) digits is 62720, while the sum is 39.
The spelling of 18070542417 in words is "eighteen billion, seventy million, five hundred forty-two thousand, four hundred seventeen".
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