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13245770 = 251324577
BaseRepresentation
bin110010100001…
…110101001010
3220220221210002
4302201311022
511342331040
61151523002
7220405256
oct62416512
926827702
1013245770
11752781a
124529462
13298a045
141a8b266
151269a15
hexca1d4a

13245770 has 8 divisors (see below), whose sum is σ = 23842404. Its totient is φ = 5298304.

The previous prime is 13245731. The next prime is 13245809. The reversal of 13245770 is 7754231.

It is an interprime number because it is at equal distance from previous prime (13245731) and next prime (13245809).

It can be written as a sum of positive squares in 2 ways, for example, as 10883401 + 2362369 = 3299^2 + 1537^2 .

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

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 in 3 ways as a sum of consecutive naturals, for example, 662279 + ... + 662298.

Almost surely, 213245770 is an apocalyptic number.

13245770 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13245770 is a deficient number, since it is larger than the sum of its proper divisors (10596634).

13245770 is a wasteful number, since it uses less digits than its factorization.

13245770 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1324584.

The product of its (nonzero) digits is 5880, while the sum is 29.

The square root of 13245770 is about 3639.4738630742. The cubic root of 13245770 is about 236.6059907493.

The spelling of 13245770 in words is "thirteen million, two hundred forty-five thousand, seven hundred seventy".

Divisors: 1 2 5 10 1324577 2649154 6622885 13245770