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13408634 = 27194427
BaseRepresentation
bin110011001001…
…100101111010
3221020020012002
4303021211322
511413034014
61155221002
7221654141
oct63114572
927206162
1013408634
117629118
1245a7762
132a16205
141ad0758
15129cdde
hexcc997a

13408634 has 8 divisors (see below), whose sum is σ = 20396448. Its totient is φ = 6609820.

The previous prime is 13408627. The next prime is 13408639. The reversal of 13408634 is 43680431.

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

It is a plaindrome in base 15.

It is a junction number, because it is equal to n+sod(n) for n = 13408597 and 13408606.

It is not an unprimeable number, because it can be changed into a prime (13408639) 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, 47072 + ... + 47355.

It is an arithmetic number, because the mean of its divisors is an integer number (2549556).

Almost surely, 213408634 is an apocalyptic number.

13408634 is a deficient number, since it is larger than the sum of its proper divisors (6987814).

13408634 is an equidigital number, since it uses as much as digits as its factorization.

13408634 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 94500.

The product of its (nonzero) digits is 6912, while the sum is 29.

The square root of 13408634 is about 3661.7801681696. The cubic root of 13408634 is about 237.5717766436.

The spelling of 13408634 in words is "thirteen million, four hundred eight thousand, six hundred thirty-four".

Divisors: 1 2 71 142 94427 188854 6704317 13408634