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13918060 = 22513199269
BaseRepresentation
bin110101000101…
…111101101100
3222012002222201
4311011331230
512030334220
61214151244
7226205302
oct65057554
928162881
1013918060
117946932
1247b2524
132b64050
141bc4272
15134dd0a
hexd45f6c

13918060 has 48 divisors (see below), whose sum is σ = 31752000. Its totient is φ = 5094144.

The previous prime is 13918049. The next prime is 13918061. The reversal of 13918060 is 6081931.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13918061) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 51606 + ... + 51874.

It is an arithmetic number, because the mean of its divisors is an integer number (661500).

Almost surely, 213918060 is an apocalyptic number.

13918060 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 13918060, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15876000).

13918060 is an abundant number, since it is smaller than the sum of its proper divisors (17833940).

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

13918060 is a wasteful number, since it uses less digits than its factorization.

13918060 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 490 (or 488 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 28.

The square root of 13918060 is about 3730.6916248867. The cubic root of 13918060 is about 240.5430987921.

Adding to 13918060 its reverse (6081931), we get a palindrome (19999991).

The spelling of 13918060 in words is "thirteen million, nine hundred eighteen thousand, sixty".

Divisors: 1 2 4 5 10 13 20 26 52 65 130 199 260 269 398 538 796 995 1076 1345 1990 2587 2690 3497 3980 5174 5380 6994 10348 12935 13988 17485 25870 34970 51740 53531 69940 107062 214124 267655 535310 695903 1070620 1391806 2783612 3479515 6959030 13918060