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67828007 = 1310095171
BaseRepresentation
bin1000000101011…
…11100100100111
311201122000112102
410002233210213
5114330444012
610421442315
71452346202
oct402574447
9151560472
1067828007
1135318205
121a87039b
131108b020
149018939
155e4c2c2
hex40af927

67828007 has 8 divisors (see below), whose sum is σ = 73132080. Its totient is φ = 62536320.

The previous prime is 67827979. The next prime is 67828009. The reversal of 67828007 is 70082876.

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

It is a cyclic number.

It is not a de Polignac number, because 67828007 - 226 = 719143 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (67828009) 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 in 7 ways as a sum of consecutive naturals, for example, 10532 + ... + 15702.

It is an arithmetic number, because the mean of its divisors is an integer number (9141510).

Almost surely, 267828007 is an apocalyptic number.

67828007 is a deficient number, since it is larger than the sum of its proper divisors (5304073).

67828007 is a wasteful number, since it uses less digits than its factorization.

67828007 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6193.

The product of its (nonzero) digits is 37632, while the sum is 38.

The square root of 67828007 is about 8235.7760411512. The cubic root of 67828007 is about 407.8210941080.

The spelling of 67828007 in words is "sixty-seven million, eight hundred twenty-eight thousand, seven".

Divisors: 1 13 1009 5171 13117 67223 5217539 67828007