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226381680 = 24325744917
BaseRepresentation
bin11010111111001…
…00111101110000
3120202222101021200
431133210331300
5430423203210
634244051200
75416132620
oct1537447560
9522871250
10226381680
111068719a8
1263993b00
1337b93375
14220cc880
1514d1b0c0
hexd7e4f70

226381680 has 120 divisors (see below), whose sum is σ = 868893792. Its totient is φ = 51743232.

The previous prime is 226381679. The next prime is 226381681. The reversal of 226381680 is 86183622.

226381680 is a `hidden beast` number, since 2 + 2 + 638 + 16 + 8 + 0 = 666.

It is an interprime number because it is at equal distance from previous prime (226381679) and next prime (226381681).

It is a tau number, because it is divible by the number of its divisors (120).

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (226381681) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 17419 + ... + 27498.

Almost surely, 2226381680 is an apocalyptic number.

226381680 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

226381680 is an abundant number, since it is smaller than the sum of its proper divisors (642512112).

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

226381680 is a wasteful number, since it uses less digits than its factorization.

226381680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44943 (or 44934 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 36.

The square root of 226381680 is about 15045.9855110923. The cubic root of 226381680 is about 609.4626460127.

The spelling of 226381680 in words is "two hundred twenty-six million, three hundred eighty-one thousand, six hundred eighty".

Divisors: 1 2 3 4 5 6 7 8 9 10 12 14 15 16 18 20 21 24 28 30 35 36 40 42 45 48 56 60 63 70 72 80 84 90 105 112 120 126 140 144 168 180 210 240 252 280 315 336 360 420 504 560 630 720 840 1008 1260 1680 2520 5040 44917 89834 134751 179668 224585 269502 314419 359336 404253 449170 539004 628838 673755 718672 808506 898340 943257 1078008 1257676 1347510 1572095 1617012 1796680 1886514 2021265 2156016 2515352 2695020 2829771 3144190 3234024 3593360 3773028 4042530 4716285 5030704 5390040 5659542 6288380 6468048 7546056 8085060 9432570 10780080 11319084 12576760 14148855 15092112 16170120 18865140 22638168 25153520 28297710 32340240 37730280 45276336 56595420 75460560 113190840 226381680