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13090400 = 255216363
BaseRepresentation
bin110001111011…
…111001100000
3220122001122122
4301323321200
511322343100
61144323412
7216160301
oct61737140
926561578
1013090400
117431014
124473568
1329343cb
141a4a7a8
151238985
hexc7be60

13090400 has 36 divisors (see below), whose sum is σ = 31958892. Its totient is φ = 5235840.

The previous prime is 13090369. The next prime is 13090421. The reversal of 13090400 is 409031.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 7382 + ... + 8981.

It is an arithmetic number, because the mean of its divisors is an integer number (887747).

Almost surely, 213090400 is an apocalyptic number.

13090400 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13090400 is an abundant number, since it is smaller than the sum of its proper divisors (18868492).

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

13090400 is a wasteful number, since it uses less digits than its factorization.

13090400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16383 (or 16370 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 17.

The square root of 13090400 is about 3618.0657816021. The cubic root of 13090400 is about 235.6772376073.

Adding to 13090400 its reverse (409031), we get a palindrome (13499431).

The spelling of 13090400 in words is "thirteen million, ninety thousand, four hundred".

Divisors: 1 2 4 5 8 10 16 20 25 32 40 50 80 100 160 200 400 800 16363 32726 65452 81815 130904 163630 261808 327260 409075 523616 654520 818150 1309040 1636300 2618080 3272600 6545200 13090400