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13379649 = 319722639
BaseRepresentation
bin110011000010…
…100001000001
3221011202102120
4303002201001
511411122044
61154434453
7221503503
oct63024101
927152376
1013379649
117609368
124592a29
132a05c6a
141ac3d73
151294519
hexcc2841

13379649 has 8 divisors (see below), whose sum is σ = 17930880. Its totient is φ = 8874096.

The previous prime is 13379633. The next prime is 13379651. The reversal of 13379649 is 94697331.

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

It is not a de Polignac number, because 13379649 - 24 = 13379633 is a prime.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a self number, because there is not a number n which added to its sum of digits gives 13379649.

It is not an unprimeable number, because it can be changed into a prime (13379609) 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, 10729 + ... + 11910.

It is an arithmetic number, because the mean of its divisors is an integer number (2241360).

Almost surely, 213379649 is an apocalyptic number.

It is an amenable number.

13379649 is a deficient number, since it is larger than the sum of its proper divisors (4551231).

13379649 is a wasteful number, since it uses less digits than its factorization.

13379649 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22839.

The product of its digits is 122472, while the sum is 42.

The square root of 13379649 is about 3657.8202525548. The cubic root of 13379649 is about 237.4004694676.

It can be divided in two parts, 13379 and 649, that added together give a triangular number (14028 = T167).

The spelling of 13379649 in words is "thirteen million, three hundred seventy-nine thousand, six hundred forty-nine".

Divisors: 1 3 197 591 22639 67917 4459883 13379649