Search a number
-
+
2213970 = 235116709
BaseRepresentation
bin1000011100100001010010
311011110222220
420130201102
51031321340
6115241510
724550503
oct10344122
94143886
102213970
111282430
128a9296
135c6955
14418baa
152daed0
hex21c852

2213970 has 32 divisors (see below), whose sum is σ = 5797440. Its totient is φ = 536640.

The previous prime is 2213963. The next prime is 2213971. The reversal of 2213970 is 793122.

It is a self number, because there is not a number n which added to its sum of digits gives 2213970.

It is not an unprimeable number, because it can be changed into a prime (2213971) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3025 + ... + 3684.

It is an arithmetic number, because the mean of its divisors is an integer number (181170).

22213970 is an apocalyptic number.

2213970 is an abundant number, since it is smaller than the sum of its proper divisors (3583470).

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

2213970 is a wasteful number, since it uses less digits than its factorization.

2213970 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6730.

The product of its (nonzero) digits is 756, while the sum is 24.

The square root of 2213970 is about 1487.9415311093. The cubic root of 2213970 is about 130.3338558873. Note that the first 3 decimals are identical.

The spelling of 2213970 in words is "two million, two hundred thirteen thousand, nine hundred seventy".

Divisors: 1 2 3 5 6 10 11 15 22 30 33 55 66 110 165 330 6709 13418 20127 33545 40254 67090 73799 100635 147598 201270 221397 368995 442794 737990 1106985 2213970