Search a number
-
+
2220030 = 2325171451
BaseRepresentation
bin1000011101111111111110
311011210022100
420131333332
51032020110
6115325530
724604251
oct10357776
94153270
102220030
111286a3a
128b08a6
135c9637
1441b098
152dcbc0
hex21dffe

2220030 has 48 divisors (see below), whose sum is σ = 6115824. Its totient is φ = 556800.

The previous prime is 2220007. The next prime is 2220041. The reversal of 2220030 is 300222.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a junction number, because it is equal to n+sod(n) for n = 2219994 and 2220021.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 805 + ... + 2255.

It is an arithmetic number, because the mean of its divisors is an integer number (127413).

22220030 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2220030, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3057912).

2220030 is an abundant number, since it is smaller than the sum of its proper divisors (3895794).

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

2220030 is a wasteful number, since it uses less digits than its factorization.

2220030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1481 (or 1478 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 9.

The square root of 2220030 is about 1489.9765098820. The cubic root of 2220030 is about 130.4526626214.

Adding to 2220030 its reverse (300222), we get a palindrome (2520252).

The spelling of 2220030 in words is "two million, two hundred twenty thousand, thirty".

Divisors: 1 2 3 5 6 9 10 15 17 18 30 34 45 51 85 90 102 153 170 255 306 510 765 1451 1530 2902 4353 7255 8706 13059 14510 21765 24667 26118 43530 49334 65295 74001 123335 130590 148002 222003 246670 370005 444006 740010 1110015 2220030