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68916814 = 234458407
BaseRepresentation
bin1000001101110…
…01011001001110
311210200100002121
410012321121032
5120120314224
610501043154
71464532441
oct406713116
9153610077
1068916814
11359a124a
121b0b64ba
131137c7a5
14921d658
1560b4be4
hex41b964e

68916814 has 4 divisors (see below), whose sum is σ = 103375224. Its totient is φ = 34458406.

The previous prime is 68916797. The next prime is 68916817. The reversal of 68916814 is 41861986.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68916817) by changing a digit.

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 as a sum of consecutive naturals, namely, 17229202 + ... + 17229205.

It is an arithmetic number, because the mean of its divisors is an integer number (25843806).

Almost surely, 268916814 is an apocalyptic number.

68916814 is a deficient number, since it is larger than the sum of its proper divisors (34458410).

68916814 is a wasteful number, since it uses less digits than its factorization.

68916814 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34458409.

The product of its digits is 82944, while the sum is 43.

The square root of 68916814 is about 8301.6151440548. The cubic root of 68916814 is about 409.9916992172.

The spelling of 68916814 in words is "sixty-eight million, nine hundred sixteen thousand, eight hundred fourteen".

Divisors: 1 2 34458407 68916814