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12053613 = 3111328097
BaseRepresentation
bin101101111110…
…110001101101
3211200101110010
4231332301231
511041203423
61110203433
7204311505
oct55766155
924611403
1012053613
116893070
124053579
132660520
14185aa05
1510d1693
hexb7ec6d

12053613 has 16 divisors (see below), whose sum is σ = 18881856. Its totient is φ = 6743040.

The previous prime is 12053611. The next prime is 12053617. The reversal of 12053613 is 31635021.

It is not a de Polignac number, because 12053613 - 21 = 12053611 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 12053613.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12053611) 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, 13620 + ... + 14477.

It is an arithmetic number, because the mean of its divisors is an integer number (1180116).

Almost surely, 212053613 is an apocalyptic number.

12053613 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

12053613 is a deficient number, since it is larger than the sum of its proper divisors (6828243).

12053613 is a wasteful number, since it uses less digits than its factorization.

12053613 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28124.

The product of its (nonzero) digits is 540, while the sum is 21.

The square root of 12053613 is about 3471.8313611119. The cubic root of 12053613 is about 229.2832951399.

Adding to 12053613 its reverse (31635021), we get a palindrome (43688634).

The spelling of 12053613 in words is "twelve million, fifty-three thousand, six hundred thirteen".

Divisors: 1 3 11 13 33 39 143 429 28097 84291 309067 365261 927201 1095783 4017871 12053613