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13255001 = 29215761
BaseRepresentation
bin110010100100…
…000101011001
3220221102102222
4302210011121
511343130001
61152033425
7220444214
oct62440531
926842388
1013255001
117533751
124532875
1329912c6
141a9077b
15126c61b
hexca4159

13255001 has 6 divisors (see below), whose sum is σ = 13728702. Its totient is φ = 12797120.

The previous prime is 13254979. The next prime is 13255007. The reversal of 13255001 is 10055231.

It can be written as a sum of positive squares in 3 ways, for example, as 2886601 + 10368400 = 1699^2 + 3220^2 .

It is not a de Polignac number, because 13255001 - 218 = 12992857 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13255007) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 7040 + ... + 8721.

It is an arithmetic number, because the mean of its divisors is an integer number (2288117).

Almost surely, 213255001 is an apocalyptic number.

It is an amenable number.

13255001 is a deficient number, since it is larger than the sum of its proper divisors (473701).

13255001 is an equidigital number, since it uses as much as digits as its factorization.

13255001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15819 (or 15790 counting only the distinct ones).

The product of its (nonzero) digits is 150, while the sum is 17.

The square root of 13255001 is about 3640.7418200142. The cubic root of 13255001 is about 236.6609416940.

The spelling of 13255001 in words is "thirteen million, two hundred fifty-five thousand, one".

Divisors: 1 29 841 15761 457069 13255001