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13560988 = 227974993
BaseRepresentation
bin110011101110…
…110010011100
3221111222011211
4303232302130
511432422423
61202354204
7223160260
oct63566234
927458154
1013560988
117722631
12465b964
132a6a66c
141b300a0
1512cd10d
hexceec9c

13560988 has 24 divisors (see below), whose sum is σ = 27407072. Its totient is φ = 5750784.

The previous prime is 13560983. The next prime is 13560997. The reversal of 13560988 is 88906531.

It is a happy number.

It is a super-2 number, since 2×135609882 = 367800791072288, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 13560988.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13560983) 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, 220 + ... + 5212.

Almost surely, 213560988 is an apocalyptic number.

It is an amenable number.

13560988 is an abundant number, since it is smaller than the sum of its proper divisors (13846084).

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

13560988 is a wasteful number, since it uses less digits than its factorization.

13560988 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5101 (or 5099 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 40.

The square root of 13560988 is about 3682.5246774462. The cubic root of 13560988 is about 238.4681836938.

It can be divided in two parts, 13 and 560988, that added together give a square (561001 = 7492).

The spelling of 13560988 in words is "thirteen million, five hundred sixty thousand, nine hundred eighty-eight".

Divisors: 1 2 4 7 14 28 97 194 388 679 1358 2716 4993 9986 19972 34951 69902 139804 484321 968642 1937284 3390247 6780494 13560988