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13608223680 = 263514175233
BaseRepresentation
bin11001010110001110…
…10000001111000000
31022010101021101111110
430223013100033000
5210332201124210
610130155243320
7661136664342
oct145307201700
938111241443
1013608223680
11585353a957
122779449540
13138b3b977c
14931453292
15549a46420
hex32b1d03c0

13608223680 has 56 divisors (see below), whose sum is σ = 43206113232. Its totient is φ = 3628859392.

The previous prime is 13608223649. The next prime is 13608223687. The reversal of 13608223680 is 8632280631.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13608223687) 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, 7086657 + ... + 7088576.

Almost surely, 213608223680 is an apocalyptic number.

13608223680 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13608223680 is an abundant number, since it is smaller than the sum of its proper divisors (29597889552).

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

13608223680 is a wasteful number, since it uses less digits than its factorization.

13608223680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14175253 (or 14175243 counting only the distinct ones).

The product of its (nonzero) digits is 82944, while the sum is 39.

The spelling of 13608223680 in words is "thirteen billion, six hundred eight million, two hundred twenty-three thousand, six hundred eighty".

Divisors: 1 2 3 4 5 6 8 10 12 15 16 20 24 30 32 40 48 60 64 80 96 120 160 192 240 320 480 960 14175233 28350466 42525699 56700932 70876165 85051398 113401864 141752330 170102796 212628495 226803728 283504660 340205592 425256990 453607456 567009320 680411184 850513980 907214912 1134018640 1360822368 1701027960 2268037280 2721644736 3402055920 4536074560 6804111840 13608223680