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13238057 = 73675153
BaseRepresentation
bin110010011111…
…111100101001
3220220120012102
4302133330221
511342104212
61151423145
7220343630
oct62377451
926816172
1013238057
117521a48
124524ab5
132986691
141a88517
1512675c2
hexc9ff29

13238057 has 8 divisors (see below), whose sum is σ = 15173376. Its totient is φ = 11313792.

The previous prime is 13238051. The next prime is 13238101. The reversal of 13238057 is 75083231.

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

It is not a de Polignac number, because 13238057 - 28 = 13237801 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13238051) 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, 8 + ... + 5145.

It is an arithmetic number, because the mean of its divisors is an integer number (1896672).

Almost surely, 213238057 is an apocalyptic number.

It is an amenable number.

13238057 is a deficient number, since it is larger than the sum of its proper divisors (1935319).

13238057 is an equidigital number, since it uses as much as digits as its factorization.

13238057 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5527.

The product of its (nonzero) digits is 5040, while the sum is 29.

The square root of 13238057 is about 3638.4140775893. The cubic root of 13238057 is about 236.5600566802.

The spelling of 13238057 in words is "thirteen million, two hundred thirty-eight thousand, fifty-seven".

Divisors: 1 7 367 2569 5153 36071 1891151 13238057