Base | Representation |
---|---|
bin | 1110111101000010000000 |
3 | 21101011020012 |
4 | 32331002000 |
5 | 2000420000 |
6 | 220004052 |
7 | 45214400 |
oct | 16750200 |
9 | 7334205 |
10 | 3920000 |
11 | 2238177 |
12 | 1390628 |
13 | a73336 |
14 | 740800 |
15 | 526735 |
hex | 3bd080 |
3920000 has 120 divisors (see below), whose sum is σ = 11351835. Its totient is φ = 1344000.
The previous prime is 3919999. The next prime is 3920003. The reversal of 3920000 is 293.
It is a happy number.
It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.
It can be written as a sum of positive squares in 3 ways, for example, as 906304 + 3013696 = 952^2 + 1736^2 .
It is an ABA number since it can be written as A⋅BA, here for A=2, B=1400.
It is a hoax number, since the sum of its digits (14) coincides with the sum of the digits of its distinct prime factors.
It is a Harshad number since it is a multiple of its sum of digits (14).
It is an Ulam number.
It is not an unprimeable number, because it can be changed into a prime (3920003) by changing a digit.
It is a polite number, since it can be written in 14 ways as a sum of consecutive naturals, for example, 559997 + ... + 560003.
Almost surely, 23920000 is an apocalyptic number.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 3920000
3920000 is an abundant number, since it is smaller than the sum of its proper divisors (7431835).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
3920000 is an frugal number, since it uses more digits than its factorization.
3920000 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 48 (or 14 counting only the distinct ones).
The product of its (nonzero) digits is 54, while the sum is 14.
The square root of 3920000 is about 1979.8989873223. The cubic root of 3920000 is about 157.6747032621.
Adding to 3920000 its reverse (293), we get a palindrome (3920293).
The spelling of 3920000 in words is "three million, nine hundred twenty thousand".
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