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13033420 = 2257379113
BaseRepresentation
bin110001101101…
…111111001100
3220112011111021
4301231333030
511314032140
61143203524
7215532211
oct61557714
926464437
1013033420
1173a2224
1244465a4
1329144aa
141a33b08
151226b4a
hexc6dfcc

13033420 has 48 divisors (see below), whose sum is σ = 28344960. Its totient is φ = 5031936.

The previous prime is 13033417. The next prime is 13033421. The reversal of 13033420 is 2433031.

It is a junction number, because it is equal to n+sod(n) for n = 13033394 and 13033403.

It is not an unprimeable number, because it can be changed into a prime (13033421) 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, 115284 + ... + 115396.

It is an arithmetic number, because the mean of its divisors is an integer number (590520).

Almost surely, 213033420 is an apocalyptic number.

13033420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13033420 is an abundant number, since it is smaller than the sum of its proper divisors (15311540).

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

13033420 is a wasteful number, since it uses less digits than its factorization.

13033420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 274 (or 272 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 16.

The square root of 13033420 is about 3610.1828208555. The cubic root of 13033420 is about 235.3347876513.

Adding to 13033420 its reverse (2433031), we get a palindrome (15466451).

The spelling of 13033420 in words is "thirteen million, thirty-three thousand, four hundred twenty".

Divisors: 1 2 4 5 10 20 73 79 113 146 158 226 292 316 365 395 452 565 730 790 1130 1460 1580 2260 5767 8249 8927 11534 16498 17854 23068 28835 32996 35708 41245 44635 57670 82490 89270 115340 164980 178540 651671 1303342 2606684 3258355 6516710 13033420