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13628057 = 29571823
BaseRepresentation
bin110011111111…
…001010011001
3221122101011212
4303333022121
511442044212
61204032505
7223556642
oct63771231
927571155
1013628057
117768a63
124692735
132a92051
141b4a6c9
1512e2e22
hexcff299

13628057 has 8 divisors (see below), whose sum is σ = 14139840. Its totient is φ = 13119120.

The previous prime is 13628039. The next prime is 13628059. The reversal of 13628057 is 75082631.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 13628057 - 214 = 13611673 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13628059) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16148 + ... + 16970.

It is an arithmetic number, because the mean of its divisors is an integer number (1767480).

Almost surely, 213628057 is an apocalyptic number.

It is an amenable number.

13628057 is a deficient number, since it is larger than the sum of its proper divisors (511783).

13628057 is an equidigital number, since it uses as much as digits as its factorization.

13628057 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1423.

The product of its (nonzero) digits is 10080, while the sum is 32.

The square root of 13628057 is about 3691.6198341649. The cubic root of 13628057 is about 238.8606705286.

The spelling of 13628057 in words is "thirteen million, six hundred twenty-eight thousand, fifty-seven".

Divisors: 1 29 571 823 16559 23867 469933 13628057