Base | Representation |
---|---|
bin | 10001001001011101… |
… | …101110110110010001 |
3 | 1202112012011211111101 |
4 | 101021131232312101 |
5 | 300202033300032 |
6 | 12243013344401 |
7 | 1221163550344 |
oct | 211135566621 |
9 | 52465154441 |
10 | 18412400017 |
11 | 7899357720 |
12 | 369a338101 |
13 | 19757c3c6b |
14 | c694dc45b |
15 | 72b6bade7 |
hex | 44976ed91 |
18412400017 has 8 divisors (see below), whose sum is σ = 20100096000. Its totient is φ = 16727010960.
The previous prime is 18412399991. The next prime is 18412400051. The reversal of 18412400017 is 71000421481.
It is a sphenic number, since it is the product of 3 distinct primes.
It is not a de Polignac number, because 18412400017 - 215 = 18412367249 is a prime.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (18412400087) 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, 560017 + ... + 591982.
It is an arithmetic number, because the mean of its divisors is an integer number (2512512000).
Almost surely, 218412400017 is an apocalyptic number.
It is an amenable number.
18412400017 is a deficient number, since it is larger than the sum of its proper divisors (1687695983).
18412400017 is a wasteful number, since it uses less digits than its factorization.
18412400017 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 1153463.
The product of its (nonzero) digits is 1792, while the sum is 28.
Adding to 18412400017 its reverse (71000421481), we get a palindrome (89412821498).
The spelling of 18412400017 in words is "eighteen billion, four hundred twelve million, four hundred thousand, seventeen".
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