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2223130 = 257213349
BaseRepresentation
bin1000011110110000011010
311011221120011
420132300122
51032120010
6115352134
724616300
oct10366032
94157504
102223130
1112892a8
128b264a
135cab80
1441c270
152dda8a
hex21ec1a

2223130 has 48 divisors (see below), whose sum is σ = 5027400. Its totient is φ = 701568.

The previous prime is 2223119. The next prime is 2223149. The reversal of 2223130 is 313222.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 1640961 + 582169 = 1281^2 + 763^2 .

It is a Harshad number since it is a multiple of its sum of digits (13).

It is a self number, because there is not a number n which added to its sum of digits gives 2223130.

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, 6196 + ... + 6544.

22223130 is an apocalyptic number.

2223130 is an abundant number, since it is smaller than the sum of its proper divisors (2804270).

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

2223130 is a wasteful number, since it uses less digits than its factorization.

2223130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 383 (or 376 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 13.

The square root of 2223130 is about 1491.0164318343. The cubic root of 2223130 is about 130.5133547692.

Adding to 2223130 its reverse (313222), we get a palindrome (2536352).

The spelling of 2223130 in words is "two million, two hundred twenty-three thousand, one hundred thirty".

Divisors: 1 2 5 7 10 13 14 26 35 49 65 70 91 98 130 182 245 349 455 490 637 698 910 1274 1745 2443 3185 3490 4537 4886 6370 9074 12215 17101 22685 24430 31759 34202 45370 63518 85505 158795 171010 222313 317590 444626 1111565 2223130