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13380591 = 37637171
BaseRepresentation
bin110011000010…
…101111101111
3221011210201110
4303002233233
511411134331
61154443103
7221506320
oct63025757
927153643
1013380591
11760a044
124593493
132a06513
141ac4447
151294946
hexcc2bef

13380591 has 8 divisors (see below), whose sum is σ = 20389504. Its totient is φ = 7646040.

The previous prime is 13380583. The next prime is 13380599. The reversal of 13380591 is 19508331.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (13380583) and next prime (13380599).

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

It is not a de Polignac number, because 13380591 - 23 = 13380583 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 (13380599) 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, 318565 + ... + 318606.

It is an arithmetic number, because the mean of its divisors is an integer number (2548688).

Almost surely, 213380591 is an apocalyptic number.

13380591 is a deficient number, since it is larger than the sum of its proper divisors (7008913).

13380591 is an equidigital number, since it uses as much as digits as its factorization.

13380591 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 637181.

The product of its (nonzero) digits is 3240, while the sum is 30.

The square root of 13380591 is about 3657.9490155004. The cubic root of 13380591 is about 237.4060407646.

The spelling of 13380591 in words is "thirteen million, three hundred eighty thousand, five hundred ninety-one".

Divisors: 1 3 7 21 637171 1911513 4460197 13380591