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13272480 = 2532513709
BaseRepresentation
bin110010101000…
…010110100000
3220222022102100
4302220112200
511344204410
61152250400
7220546164
oct62502640
926868370
1013272480
1175458a1
124540a00
132999250
141a96ca4
1512728c0
hexca85a0

13272480 has 144 divisors (see below), whose sum is σ = 48845160. Its totient is φ = 3262464.

The previous prime is 13272451. The next prime is 13272487. The reversal of 13272480 is 8427231.

It can be written as a sum of positive squares in 4 ways, for example, as 5588496 + 7683984 = 2364^2 + 2772^2 .

It is a tau number, because it is divible by the number of its divisors (144).

It is not an unprimeable number, because it can be changed into a prime (13272487) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 18366 + ... + 19074.

Almost surely, 213272480 is an apocalyptic number.

13272480 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13272480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (24422580).

13272480 is an abundant number, since it is smaller than the sum of its proper divisors (35572680).

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

13272480 is a wasteful number, since it uses less digits than its factorization.

13272480 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 743 (or 732 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 27.

The square root of 13272480 is about 3643.1415015066. The cubic root of 13272480 is about 236.7649220624.

It can be divided in two parts, 1 and 3272480, that added together give a square (3272481 = 18092).

The spelling of 13272480 in words is "thirteen million, two hundred seventy-two thousand, four hundred eighty".

Divisors: 1 2 3 4 5 6 8 9 10 12 13 15 16 18 20 24 26 30 32 36 39 40 45 48 52 60 65 72 78 80 90 96 104 117 120 130 144 156 160 180 195 208 234 240 260 288 312 360 390 416 468 480 520 585 624 709 720 780 936 1040 1170 1248 1418 1440 1560 1872 2080 2127 2340 2836 3120 3545 3744 4254 4680 5672 6240 6381 7090 8508 9217 9360 10635 11344 12762 14180 17016 18434 18720 21270 22688 25524 27651 28360 31905 34032 36868 42540 46085 51048 55302 56720 63810 68064 73736 82953 85080 92170 102096 110604 113440 127620 138255 147472 165906 170160 184340 204192 221208 255240 276510 294944 331812 340320 368680 414765 442416 510480 553020 663624 737360 829530 884832 1020960 1106040 1327248 1474720 1659060 2212080 2654496 3318120 4424160 6636240 13272480