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68416982 = 234208491
BaseRepresentation
bin1000001001111…
…11010111010110
311202201221110022
410010333113112
5120003320412
610442225142
71460351264
oct404772726
9152657408
1068416982
113568a767
121aab51b2
131123612a
14912d434
156016a72
hex413f5d6

68416982 has 4 divisors (see below), whose sum is σ = 102625476. Its totient is φ = 34208490.

The previous prime is 68416979. The next prime is 68416991. The reversal of 68416982 is 28961486.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 28961486 = 214480743.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 17104244 + ... + 17104247.

It is an arithmetic number, because the mean of its divisors is an integer number (25656369).

Almost surely, 268416982 is an apocalyptic number.

68416982 is a deficient number, since it is larger than the sum of its proper divisors (34208494).

68416982 is a wasteful number, since it uses less digits than its factorization.

68416982 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34208493.

The product of its digits is 165888, while the sum is 44.

The square root of 68416982 is about 8271.4558573446. The cubic root of 68416982 is about 408.9981129469.

The spelling of 68416982 in words is "sixty-eight million, four hundred sixteen thousand, nine hundred eighty-two".

Divisors: 1 2 34208491 68416982