Base | Representation |
---|---|
bin | 100010110001… |
… | …1000110100010 |
3 | 1021022021012200 |
4 | 1011203012202 |
5 | 14131403324 |
6 | 1450434030 |
7 | 310652454 |
oct | 105430642 |
9 | 37267180 |
10 | 18231714 |
11 | a322836 |
12 | 6132916 |
13 | 3a145c7 |
14 | 25c82d4 |
15 | 1901ec9 |
hex | 11631a2 |
18231714 has 24 divisors (see below), whose sum is σ = 39716352. Its totient is φ = 6044280.
The previous prime is 18231673. The next prime is 18231743. The reversal of 18231714 is 41713281.
It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.
It is an unprimeable number.
It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 787 + ... + 6089.
It is an arithmetic number, because the mean of its divisors is an integer number (1654848).
Almost surely, 218231714 is an apocalyptic number.
18231714 is an abundant number, since it is smaller than the sum of its proper divisors (21484638).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
18231714 is a wasteful number, since it uses less digits than its factorization.
18231714 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 5502 (or 5499 counting only the distinct ones).
The product of its digits is 1344, while the sum is 27.
The square root of 18231714 is about 4269.8611218633. The cubic root of 18231714 is about 263.1939082825.
Adding to 18231714 its sum of digits (27), we get a triangular number (18231741 = T6038).
Adding to 18231714 its reverse (41713281), we get a palindrome (59944995).
The spelling of 18231714 in words is "eighteen million, two hundred thirty-one thousand, seven hundred fourteen".
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