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68342452 = 2219786729
BaseRepresentation
bin1000001001011…
…01001010110100
311202121011012221
410010231022310
5114443424302
610440452124
71456621063
oct404551264
9152534187
1068342452
1135639772
121aa7a044
131120b229
1491101da
155eee937
hex412d2b4

68342452 has 12 divisors (see below), whose sum is σ = 120207780. Its totient is φ = 33997376.

The previous prime is 68342429. The next prime is 68342459. The reversal of 68342452 is 25424386.

It can be written as a sum of positive squares in 2 ways, for example, as 57093136 + 11249316 = 7556^2 + 3354^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68342459) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 42577 + ... + 44152.

It is an arithmetic number, because the mean of its divisors is an integer number (10017315).

Almost surely, 268342452 is an apocalyptic number.

It is an amenable number.

68342452 is a deficient number, since it is larger than the sum of its proper divisors (51865328).

68342452 is a wasteful number, since it uses less digits than its factorization.

68342452 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 86930 (or 86928 counting only the distinct ones).

The product of its digits is 46080, while the sum is 34.

The square root of 68342452 is about 8266.9493768863. The cubic root of 68342452 is about 408.8495450334.

The spelling of 68342452 in words is "sixty-eight million, three hundred forty-two thousand, four hundred fifty-two".

Divisors: 1 2 4 197 394 788 86729 173458 346916 17085613 34171226 68342452