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13297085 = 56143597
BaseRepresentation
bin110010101110…
…010110111101
3221000120011122
4302232112331
511401001320
61153000325
7221011004
oct62562675
927016148
1013297085
11756232a
1245530a5
1329a74c9
141aa1c3b
151279d25
hexcae5bd

13297085 has 8 divisors (see below), whose sum is σ = 16218456. Its totient is φ = 10463040.

The previous prime is 13297073. The next prime is 13297087. The reversal of 13297085 is 58079231.

13297085 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 1387684 + 11909401 = 1178^2 + 3451^2 .

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

It is not a de Polignac number, because 13297085 - 24 = 13297069 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 (13297087) 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, 21494 + ... + 22103.

It is an arithmetic number, because the mean of its divisors is an integer number (2027307).

Almost surely, 213297085 is an apocalyptic number.

It is an amenable number.

13297085 is a deficient number, since it is larger than the sum of its proper divisors (2921371).

13297085 is an equidigital number, since it uses as much as digits as its factorization.

13297085 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43663.

The product of its (nonzero) digits is 15120, while the sum is 35.

The square root of 13297085 is about 3646.5168311692. The cubic root of 13297085 is about 236.9111395165.

The spelling of 13297085 in words is "thirteen million, two hundred ninety-seven thousand, eighty-five".

Divisors: 1 5 61 305 43597 217985 2659417 13297085