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68874646 = 247732709
BaseRepresentation
bin1000001101011…
…11000110010110
311210121012020211
410012233012112
5120112442041
610500120034
71464265501
oct406570626
9153535224
1068874646
11359725a5
121b09601a
1311366539
14920c138
1560a7481
hex41af196

68874646 has 8 divisors (see below), whose sum is σ = 105510240. Its totient is φ = 33704568.

The previous prime is 68874607. The next prime is 68874661. The reversal of 68874646 is 64647886.

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

It is a self number, because there is not a number n which added to its sum of digits gives 68874646.

It is a congruent number.

It is an unprimeable number.

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, 366261 + ... + 366448.

It is an arithmetic number, because the mean of its divisors is an integer number (13188780).

Almost surely, 268874646 is an apocalyptic number.

68874646 is a deficient number, since it is larger than the sum of its proper divisors (36635594).

68874646 is a wasteful number, since it uses less digits than its factorization.

68874646 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 732758.

The product of its digits is 1548288, while the sum is 49.

The square root of 68874646 is about 8299.0750086983. The cubic root of 68874646 is about 409.9080618760.

The spelling of 68874646 in words is "sixty-eight million, eight hundred seventy-four thousand, six hundred forty-six".

Divisors: 1 2 47 94 732709 1465418 34437323 68874646