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68404622 = 211132310399
BaseRepresentation
bin1000001001111…
…00010110001110
311202201022111112
410010330112032
5120002421442
610442052022
71460300246
oct404742616
9152638445
1068404622
1135681450
121aaaa012
1311230610
149128b26
156013082
hex413c58e

68404622 has 32 divisors (see below), whose sum is σ = 125798400. Its totient is φ = 27450720.

The previous prime is 68404621. The next prime is 68404627. The reversal of 68404622 is 22640486.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68404621) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1379 + ... + 11777.

It is an arithmetic number, because the mean of its divisors is an integer number (3931200).

Almost surely, 268404622 is an apocalyptic number.

68404622 is a deficient number, since it is larger than the sum of its proper divisors (57393778).

68404622 is a wasteful number, since it uses less digits than its factorization.

68404622 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10448.

The product of its (nonzero) digits is 18432, while the sum is 32.

The square root of 68404622 is about 8270.7086758028. The cubic root of 68404622 is about 408.9734820197.

The spelling of 68404622 in words is "sixty-eight million, four hundred four thousand, six hundred twenty-two".

Divisors: 1 2 11 13 22 23 26 46 143 253 286 299 506 598 3289 6578 10399 20798 114389 135187 228778 239177 270374 478354 1487057 2630947 2974114 3109301 5261894 6218602 34202311 68404622