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13185194 = 2115871021
BaseRepresentation
bin110010010011…
…000010101010
3220210212200112
4302103002222
511333411234
61150334322
7220033541
oct62230252
926725615
1013185194
117496260
1244ba3a2
1329685b9
141a73158
151256ace
hexc930aa

13185194 has 16 divisors (see below), whose sum is σ = 21633696. Its totient is φ = 5977200.

The previous prime is 13185191. The next prime is 13185223. The reversal of 13185194 is 49158131.

It is a Curzon number.

It is a plaindrome in base 15.

It is a self number, because there is not a number n which added to its sum of digits gives 13185194.

It is not an unprimeable number, because it can be changed into a prime (13185191) 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, 12404 + ... + 13424.

It is an arithmetic number, because the mean of its divisors is an integer number (1352106).

Almost surely, 213185194 is an apocalyptic number.

13185194 is a deficient number, since it is larger than the sum of its proper divisors (8448502).

13185194 is a wasteful number, since it uses less digits than its factorization.

13185194 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1621.

The product of its digits is 4320, while the sum is 32.

The square root of 13185194 is about 3631.1422445286. The cubic root of 13185194 is about 236.2447546963.

The spelling of 13185194 in words is "thirteen million, one hundred eighty-five thousand, one hundred ninety-four".

Divisors: 1 2 11 22 587 1021 1174 2042 6457 11231 12914 22462 599327 1198654 6592597 13185194