[go: up one dir, main page]

Search a number
-
+
2838580 = 225711999
BaseRepresentation
bin1010110101000000110100
312100012210121
422311000310
51211313310
6140501324
733061513
oct12650064
95305717
102838580
111669738
12b4a844
13785044
1453c67a
153b10da
hex2b5034

2838580 has 24 divisors (see below), whose sum is σ = 6048000. Its totient is φ = 1118880.

The previous prime is 2838569. The next prime is 2838587. The reversal of 2838580 is 858382.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2838587) 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, 421 + ... + 2419.

It is an arithmetic number, because the mean of its divisors is an integer number (252000).

22838580 is an apocalyptic number.

2838580 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2838580 is an abundant number, since it is smaller than the sum of its proper divisors (3209420).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2838580 is a wasteful number, since it uses less digits than its factorization.

2838580 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2079 (or 2077 counting only the distinct ones).

The product of its (nonzero) digits is 15360, while the sum is 34.

The square root of 2838580 is about 1684.8085944700. The cubic root of 2838580 is about 141.5903687577.

The spelling of 2838580 in words is "two million, eight hundred thirty-eight thousand, five hundred eighty".

Divisors: 1 2 4 5 10 20 71 142 284 355 710 1420 1999 3998 7996 9995 19990 39980 141929 283858 567716 709645 1419290 2838580