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13308371 = 431731789
BaseRepresentation
bin110010110001…
…000111010011
3221001010122122
4302301013103
511401331441
61153124455
7221055626
oct62610723
927033578
1013308371
11756a85a
12455972b
1329ac69b
141aa5dbd
15127d34b
hexcb11d3

13308371 has 8 divisors (see below), whose sum is σ = 13704240. Its totient is φ = 12916512.

The previous prime is 13308343. The next prime is 13308377. The reversal of 13308371 is 17380331.

13308371 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 13308371 - 210 = 13307347 is a prime.

It is a super-2 number, since 2×133083712 = 354225477347282, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 13308371.

It is not an unprimeable number, because it can be changed into a prime (13308377) 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, 6545 + ... + 8333.

It is an arithmetic number, because the mean of its divisors is an integer number (1713030).

Almost surely, 213308371 is an apocalyptic number.

13308371 is a deficient number, since it is larger than the sum of its proper divisors (395869).

13308371 is a wasteful number, since it uses less digits than its factorization.

13308371 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2005.

The product of its (nonzero) digits is 1512, while the sum is 26.

The square root of 13308371 is about 3648.0640071139. The cubic root of 13308371 is about 236.9781472608.

The spelling of 13308371 in words is "thirteen million, three hundred eight thousand, three hundred seventy-one".

Divisors: 1 43 173 1789 7439 76927 309497 13308371