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2212754420 = 225412698481
BaseRepresentation
bin1000001111100011…
…1111001111110100
312201012200120102102
42003320333033310
514012431120140
61003323001232
7105556050032
oct20370771764
95635616372
102212754420
11a36051168
12519069218
13293578b56
1416dc3b552
15ce3dae15
hex83e3f3f4

2212754420 has 24 divisors (see below), whose sum is σ = 4760122248. Its totient is φ = 863513600.

The previous prime is 2212754417. The next prime is 2212754429. The reversal of 2212754420 is 244572122.

It can be written as a sum of positive squares in 4 ways, for example, as 137405284 + 2075349136 = 11722^2 + 45556^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2212754429) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1348421 + ... + 1350060.

It is an arithmetic number, because the mean of its divisors is an integer number (198338427).

Almost surely, 22212754420 is an apocalyptic number.

2212754420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2212754420 is an abundant number, since it is smaller than the sum of its proper divisors (2547367828).

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

2212754420 is a wasteful number, since it uses less digits than its factorization.

2212754420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2698531 (or 2698529 counting only the distinct ones).

The product of its (nonzero) digits is 8960, while the sum is 29.

The square root of 2212754420 is about 47039.9236819109. The cubic root of 2212754420 is about 1303.0999825702.

The spelling of 2212754420 in words is "two billion, two hundred twelve million, seven hundred fifty-four thousand, four hundred twenty".

Divisors: 1 2 4 5 10 20 41 82 164 205 410 820 2698481 5396962 10793924 13492405 26984810 53969620 110637721 221275442 442550884 553188605 1106377210 2212754420