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13193018 = 230721487
BaseRepresentation
bin110010010100…
…111100111010
3220211021102022
4302110330322
511334134033
61150434442
7220065416
oct62247472
926737368
1013193018
1174a1123
124502a22
13296c027
141a75d46
151259098
hexc94f3a

13193018 has 8 divisors (see below), whose sum is σ = 19854912. Its totient is φ = 6574716.

The previous prime is 13193017. The next prime is 13193027. The reversal of 13193018 is 81039131.

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

It is not an unprimeable number, because it can be changed into a prime (13193017) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10130 + ... + 11357.

It is an arithmetic number, because the mean of its divisors is an integer number (2481864).

Almost surely, 213193018 is an apocalyptic number.

13193018 is a deficient number, since it is larger than the sum of its proper divisors (6661894).

13193018 is a wasteful number, since it uses less digits than its factorization.

13193018 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21796.

The product of its (nonzero) digits is 648, while the sum is 26.

The square root of 13193018 is about 3632.2194316974. The cubic root of 13193018 is about 236.2914741069.

The spelling of 13193018 in words is "thirteen million, one hundred ninety-three thousand, eighteen".

Divisors: 1 2 307 614 21487 42974 6596509 13193018