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13397560 = 2351130449
BaseRepresentation
bin110011000110…
…111000111000
3221012122222221
4303012320320
511412210220
61155053424
7221606641
oct63067070
927178887
1013397560
117620870
1245a1274
132a11167
141aca6c8
1512999aa
hexcc6e38

13397560 has 32 divisors (see below), whose sum is σ = 32886000. Its totient is φ = 4871680.

The previous prime is 13397557. The next prime is 13397561. The reversal of 13397560 is 6579331.

13397560 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×133975602 = 358989227907200, which contains 22 as substring.

It is a plaindrome in base 15.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13397561) 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, 14785 + ... + 15664.

Almost surely, 213397560 is an apocalyptic number.

13397560 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13397560 is an abundant number, since it is smaller than the sum of its proper divisors (19488440).

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

13397560 is a wasteful number, since it uses less digits than its factorization.

13397560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30471 (or 30467 counting only the distinct ones).

The product of its (nonzero) digits is 17010, while the sum is 34.

The square root of 13397560 is about 3660.2677497691. The cubic root of 13397560 is about 237.5063562472.

The spelling of 13397560 in words is "thirteen million, three hundred ninety-seven thousand, five hundred sixty".

Divisors: 1 2 4 5 8 10 11 20 22 40 44 55 88 110 220 440 30449 60898 121796 152245 243592 304490 334939 608980 669878 1217960 1339756 1674695 2679512 3349390 6698780 13397560