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13630260 = 22357172383
BaseRepresentation
bin110011111111…
…101100110100
3221122111012110
4303333230310
511442132020
61204051020
7223566240
oct63775464
927574173
1013630260
11776a686
124693a70
132a93057
141b4b420
1512e38e0
hexcffb34

13630260 has 192 divisors, whose sum is σ = 48771072. Its totient is φ = 2770944.

The previous prime is 13630259. The next prime is 13630273. The reversal of 13630260 is 6203631.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 164179 + ... + 164261.

It is an arithmetic number, because the mean of its divisors is an integer number (254016).

Almost surely, 213630260 is an apocalyptic number.

13630260 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 13630260, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (24385536).

13630260 is an abundant number, since it is smaller than the sum of its proper divisors (35140812).

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

13630260 is a wasteful number, since it uses less digits than its factorization.

13630260 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 142 (or 140 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 21.

The square root of 13630260 is about 3691.9182006106. The cubic root of 13630260 is about 238.8735405879.

Adding to 13630260 its reverse (6203631), we get a palindrome (19833891).

The spelling of 13630260 in words is "thirteen million, six hundred thirty thousand, two hundred sixty".