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68409150 = 2352456061
BaseRepresentation
bin1000001001111…
…01011100111110
311202201112201020
410010331130332
5120003043100
610442125010
71460316405
oct404753476
9152645636
1068409150
1135684897
121aab0766
13112326b4
14912a63c
1560145a0
hex413d73e

68409150 has 24 divisors (see below), whose sum is σ = 169655064. Its totient is φ = 18242400.

The previous prime is 68409149. The next prime is 68409161. The reversal of 68409150 is 5190486.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 227881 + ... + 228180.

It is an arithmetic number, because the mean of its divisors is an integer number (7068961).

Almost surely, 268409150 is an apocalyptic number.

68409150 is an abundant number, since it is smaller than the sum of its proper divisors (101245914).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

68409150 is a wasteful number, since it uses less digits than its factorization.

68409150 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 456076 (or 456071 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 33.

The square root of 68409150 is about 8270.9824083962. The cubic root of 68409150 is about 408.9825057328.

The spelling of 68409150 in words is "sixty-eight million, four hundred nine thousand, one hundred fifty".

Divisors: 1 2 3 5 6 10 15 25 30 50 75 150 456061 912122 1368183 2280305 2736366 4560610 6840915 11401525 13681830 22803050 34204575 68409150