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68404054 = 234202027
BaseRepresentation
bin1000001001111…
…00001101010110
311202201021201111
410010330031112
5120002412204
610442045234
71460265505
oct404741526
9152637644
1068404054
1135680a84
121aaa981a
1311230294
14912883c
156012d04
hex413c356

68404054 has 4 divisors (see below), whose sum is σ = 102606084. Its totient is φ = 34202026.

The previous prime is 68404019. The next prime is 68404067. The reversal of 68404054 is 45040486.

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

It is a super-2 number, since 2×684040542 = 9358229207269832, which contains 22 as substring.

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, 17101012 + ... + 17101015.

It is an arithmetic number, because the mean of its divisors is an integer number (25651521).

Almost surely, 268404054 is an apocalyptic number.

68404054 is a deficient number, since it is larger than the sum of its proper divisors (34202030).

68404054 is a wasteful number, since it uses less digits than its factorization.

68404054 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34202029.

The product of its (nonzero) digits is 15360, while the sum is 31.

The square root of 68404054 is about 8270.6743376825. The cubic root of 68404054 is about 408.9723500417.

The spelling of 68404054 in words is "sixty-eight million, four hundred four thousand, fifty-four".

Divisors: 1 2 34202027 68404054