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13490222 = 247143513
BaseRepresentation
bin110011011101…
…100000101110
3221101101002212
4303131200232
511423141342
61201050422
7222444044
oct63354056
927341085
1013490222
117684449
124626a12
132a443a5
141b12394
1512b7182
hexcdd82e

13490222 has 8 divisors (see below), whose sum is σ = 20666016. Its totient is φ = 6601552.

The previous prime is 13490221. The next prime is 13490227. The reversal of 13490222 is 22209431.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13490221) 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, 71663 + ... + 71850.

It is an arithmetic number, because the mean of its divisors is an integer number (2583252).

Almost surely, 213490222 is an apocalyptic number.

13490222 is a deficient number, since it is larger than the sum of its proper divisors (7175794).

13490222 is a wasteful number, since it uses less digits than its factorization.

13490222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 143562.

The product of its (nonzero) digits is 864, while the sum is 23.

The square root of 13490222 is about 3672.9037558858. The cubic root of 13490222 is about 238.0526564752.

Adding to 13490222 its reverse (22209431), we get a palindrome (35699653).

The spelling of 13490222 in words is "thirteen million, four hundred ninety thousand, two hundred twenty-two".

Divisors: 1 2 47 94 143513 287026 6745111 13490222