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2243384280 = 233256231623
BaseRepresentation
bin1000010110110111…
…0101001111011000
312210100022201200200
42011231311033120
514043301244110
61010335302200
7106410310644
oct20555651730
95710281620
102243384280
11a513718a5
1252737a960
13299a11727
14173d31c24
15d1e3b6c0
hex85b753d8

2243384280 has 48 divisors (see below), whose sum is σ = 7291000080. Its totient is φ = 598235712.

The previous prime is 2243384279. The next prime is 2243384309. The reversal of 2243384280 is 824833422.

It is a happy number.

2243384280 is a `hidden beast` number, since 224 + 3 + 3 + 8 + 428 + 0 = 666.

It is a super-2 number, since 2×22433842802 = 10065546055502236800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3115452 + ... + 3116171.

It is an arithmetic number, because the mean of its divisors is an integer number (151895835).

Almost surely, 22243384280 is an apocalyptic number.

2243384280 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2243384280 is an abundant number, since it is smaller than the sum of its proper divisors (5047615800).

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

2243384280 is a wasteful number, since it uses less digits than its factorization.

2243384280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6231640 (or 6231633 counting only the distinct ones).

The product of its (nonzero) digits is 73728, while the sum is 36.

The square root of 2243384280 is about 47364.3777537508. The cubic root of 2243384280 is about 1309.0851332342.

The spelling of 2243384280 in words is "two billion, two hundred forty-three million, three hundred eighty-four thousand, two hundred eighty".

Divisors: 1 2 3 4 5 6 8 9 10 12 15 18 20 24 30 36 40 45 60 72 90 120 180 360 6231623 12463246 18694869 24926492 31158115 37389738 49852984 56084607 62316230 74779476 93474345 112169214 124632460 149558952 186948690 224338428 249264920 280423035 373897380 448676856 560846070 747794760 1121692140 2243384280