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13028408 = 231628551
BaseRepresentation
bin110001101100…
…110000111000
3220111220121122
4301230300320
511313402113
61143124412
7215511461
oct61546070
926456548
1013028408
117399488
124443708
132912123
141a31d68
151225408
hexc6cc38

13028408 has 8 divisors (see below), whose sum is σ = 24428280. Its totient is φ = 6514200.

The previous prime is 13028399. The next prime is 13028413. The reversal of 13028408 is 80482031.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 814268 + ... + 814283.

It is an arithmetic number, because the mean of its divisors is an integer number (3053535).

Almost surely, 213028408 is an apocalyptic number.

It is an amenable number.

13028408 is a deficient number, since it is larger than the sum of its proper divisors (11399872).

13028408 is a wasteful number, since it uses less digits than its factorization.

13028408 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1628557 (or 1628553 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 26.

The square root of 13028408 is about 3609.4886064372. The cubic root of 13028408 is about 235.3046177961.

The spelling of 13028408 in words is "thirteen million, twenty-eight thousand, four hundred eight".

Divisors: 1 2 4 8 1628551 3257102 6514204 13028408