Base | Representation |
---|---|
bin | 100100001001… |
… | …0111101000010 |
3 | 1022122212021000 |
4 | 1020102331002 |
5 | 14322431002 |
6 | 1514112430 |
7 | 320042436 |
oct | 110227502 |
9 | 38585230 |
10 | 18952002 |
11 | a774a13 |
12 | 641b716 |
13 | 3c07404 |
14 | 27349c6 |
15 | 19e561c |
hex | 1212f42 |
18952002 has 16 divisors (see below), whose sum is σ = 42115680. Its totient is φ = 6317316.
The previous prime is 18952001. The next prime is 18952007. The reversal of 18952002 is 20025981.
It is a Harshad number since it is a multiple of its sum of digits (27).
It is not an unprimeable number, because it can be changed into a prime (18952001) 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, 175428 + ... + 175535.
It is an arithmetic number, because the mean of its divisors is an integer number (2632230).
Almost surely, 218952002 is an apocalyptic number.
18952002 is an abundant number, since it is smaller than the sum of its proper divisors (23163678).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
18952002 is a wasteful number, since it uses less digits than its factorization.
18952002 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 350974 (or 350968 counting only the distinct ones).
The product of its (nonzero) digits is 1440, while the sum is 27.
The square root of 18952002 is about 4353.3897137748. The cubic root of 18952002 is about 266.6152772501.
Adding to 18952002 its reverse (20025981), we get a palindrome (38977983).
The spelling of 18952002 in words is "eighteen million, nine hundred fifty-two thousand, two".
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