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2213140 = 225239463
BaseRepresentation
bin1000011100010100010100
311011102212011
420130110110
51031310030
6115234004
724545206
oct10342424
94142764
102213140
111281846
128a8904
135c6467
14418776
152dab2a
hex21c514

2213140 has 24 divisors (see below), whose sum is σ = 4677120. Its totient is φ = 879648.

The previous prime is 2213137. The next prime is 2213143. The reversal of 2213140 is 413122.

It is an interprime number because it is at equal distance from previous prime (2213137) and next prime (2213143).

It is a self number, because there is not a number n which added to its sum of digits gives 2213140.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2213143) 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, 4549 + ... + 5011.

It is an arithmetic number, because the mean of its divisors is an integer number (194880).

22213140 is an apocalyptic number.

2213140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2213140 is an abundant number, since it is smaller than the sum of its proper divisors (2463980).

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

2213140 is a wasteful number, since it uses less digits than its factorization.

2213140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 711 (or 709 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 13.

The square root of 2213140 is about 1487.6625961555. The cubic root of 2213140 is about 130.3175668045.

Adding to 2213140 its reverse (413122), we get a palindrome (2626262).

The spelling of 2213140 in words is "two million, two hundred thirteen thousand, one hundred forty".

Divisors: 1 2 4 5 10 20 239 463 478 926 956 1195 1852 2315 2390 4630 4780 9260 110657 221314 442628 553285 1106570 2213140