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13249130 = 251324913
BaseRepresentation
bin110010100010…
…101001101010
3220221010101112
4302202221222
511342433010
61151550322
7220421126
oct62425152
926833345
1013249130
11752a2a4
12452b3a2
13298b72b
141a8c586
15126aa05
hexca2a6a

13249130 has 8 divisors (see below), whose sum is σ = 23848452. Its totient is φ = 5299648.

The previous prime is 13249111. The next prime is 13249141. The reversal of 13249130 is 3194231.

It can be written as a sum of positive squares in 2 ways, for example, as 12271009 + 978121 = 3503^2 + 989^2 .

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

It is a junction number, because it is equal to n+sod(n) for n = 13249096 and 13249105.

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, 662447 + ... + 662466.

Almost surely, 213249130 is an apocalyptic number.

13249130 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13249130 is a deficient number, since it is larger than the sum of its proper divisors (10599322).

13249130 is a wasteful number, since it uses less digits than its factorization.

13249130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1324920.

The product of its (nonzero) digits is 648, while the sum is 23.

The square root of 13249130 is about 3639.9354389879. The cubic root of 13249130 is about 236.6259953474.

The spelling of 13249130 in words is "thirteen million, two hundred forty-nine thousand, one hundred thirty".

Divisors: 1 2 5 10 1324913 2649826 6624565 13249130