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68079854 = 234039927
BaseRepresentation
bin1000000111011…
…01000011101110
311202002211000002
410003231003232
5114412023404
610431104302
71454445353
oct403550356
9152084002
1068079854
113547a447
121a972092
131114884b
14908262a
155e9bc1e
hex40ed0ee

68079854 has 4 divisors (see below), whose sum is σ = 102119784. Its totient is φ = 34039926.

The previous prime is 68079853. The next prime is 68079857. The reversal of 68079854 is 45897086.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 45897086 = 222948543.

It is a super-2 number, since 2×680798542 = 9269733041322632, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 68079799 and 68079808.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68079853) 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, 17019962 + ... + 17019965.

It is an arithmetic number, because the mean of its divisors is an integer number (25529946).

Almost surely, 268079854 is an apocalyptic number.

68079854 is a deficient number, since it is larger than the sum of its proper divisors (34039930).

68079854 is a wasteful number, since it uses less digits than its factorization.

68079854 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34039929.

The product of its (nonzero) digits is 483840, while the sum is 47.

The square root of 68079854 is about 8251.0516905422. The cubic root of 68079854 is about 408.3252204784.

It can be divided in two parts, 6807 and 9854, that added together give a palindrome (16661).

The spelling of 68079854 in words is "sixty-eight million, seventy-nine thousand, eight hundred fifty-four".

Divisors: 1 2 34039927 68079854