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68834650 = 2521376693
BaseRepresentation
bin1000001101001…
…01010101011010
311210112011101111
410012211111122
5120110202100
610455210534
71464041053
oct406452532
9153464344
1068834650
1135945545
121b076a4a
1311351281
1491db72a
15609a6ba
hex41a555a

68834650 has 12 divisors (see below), whose sum is σ = 128032542. Its totient is φ = 27533840.

The previous prime is 68834627. The next prime is 68834671. The reversal of 68834650 is 5643886.

It can be written as a sum of positive squares in 3 ways, for example, as 40564161 + 28270489 = 6369^2 + 5317^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 688297 + ... + 688396.

Almost surely, 268834650 is an apocalyptic number.

68834650 is a deficient number, since it is larger than the sum of its proper divisors (59197892).

68834650 is a wasteful number, since it uses less digits than its factorization.

68834650 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1376705 (or 1376700 counting only the distinct ones).

The product of its (nonzero) digits is 138240, while the sum is 40.

The square root of 68834650 is about 8296.6649926341. The cubic root of 68834650 is about 409.8287009968.

The spelling of 68834650 in words is "sixty-eight million, eight hundred thirty-four thousand, six hundred fifty".

Divisors: 1 2 5 10 25 50 1376693 2753386 6883465 13766930 34417325 68834650