Search a number
-
+
2472220 = 225711741
BaseRepresentation
bin1001011011100100011100
311122121020201
421123210130
51113102340
6124553244
730004432
oct11334434
94577221
102472220
111439463
129b2824
1368736a
14484d52
1533c79a
hex25b91c

2472220 has 24 divisors (see below), whose sum is σ = 5267808. Its totient is φ = 974400.

The previous prime is 2472209. The next prime is 2472227. The reversal of 2472220 is 222742.

2472220 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×24722202 = 12223743456800, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2472227) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 550 + ... + 2290.

It is an arithmetic number, because the mean of its divisors is an integer number (219492).

22472220 is an apocalyptic number.

2472220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2472220 is an abundant number, since it is smaller than the sum of its proper divisors (2795588).

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

2472220 is a wasteful number, since it uses less digits than its factorization.

2472220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1821 (or 1819 counting only the distinct ones).

The product of its (nonzero) digits is 448, while the sum is 19.

The square root of 2472220 is about 1572.3294820107. The cubic root of 2472220 is about 135.2162970679.

Adding to 2472220 its reverse (222742), we get a palindrome (2694962).

It can be divided in two parts, 24722 and 20, that added together give a palindrome (24742).

The spelling of 2472220 in words is "two million, four hundred seventy-two thousand, two hundred twenty".

Divisors: 1 2 4 5 10 20 71 142 284 355 710 1420 1741 3482 6964 8705 17410 34820 123611 247222 494444 618055 1236110 2472220