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13418268 = 2231118189
BaseRepresentation
bin110011001011…
…111100011100
3221020201101220
4303023330130
511413341033
61155333340
7222024213
oct63137434
927221356
1013418268
117635386
1245b1250
132a1a706
141ad407a
1512a0bb3
hexccbf1c

13418268 has 12 divisors (see below), whose sum is σ = 31309320. Its totient is φ = 4472752.

The previous prime is 13418267. The next prime is 13418299. The reversal of 13418268 is 86281431.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-2 number, since 2×134182682 = 360099832239648, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13418267) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 559083 + ... + 559106.

It is an arithmetic number, because the mean of its divisors is an integer number (2609110).

Almost surely, 213418268 is an apocalyptic number.

It is an amenable number.

13418268 is an abundant number, since it is smaller than the sum of its proper divisors (17891052).

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

13418268 is a wasteful number, since it uses less digits than its factorization.

13418268 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1118196 (or 1118194 counting only the distinct ones).

The product of its digits is 9216, while the sum is 33.

The square root of 13418268 is about 3663.0954123528. The cubic root of 13418268 is about 237.6286608512.

Adding to 13418268 its reverse (86281431), we get a palindrome (99699699).

The spelling of 13418268 in words is "thirteen million, four hundred eighteen thousand, two hundred sixty-eight".

Divisors: 1 2 3 4 6 12 1118189 2236378 3354567 4472756 6709134 13418268