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68471007 = 3114373661
BaseRepresentation
bin1000001010011…
…00100011011111
311202211200120020
410011030203133
5120012033012
610443323223
71460664633
oct405144337
9152750506
1068471007
1135717310
121ab20513
13112548b7
149144dc3
156027a8c
hex414c8df

68471007 has 32 divisors (see below), whose sum is σ = 103462656. Its totient is φ = 39916800.

The previous prime is 68470999. The next prime is 68471009. The reversal of 68471007 is 70017486.

It is not a de Polignac number, because 68471007 - 23 = 68470999 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68471009) 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 31 ways as a sum of consecutive naturals, for example, 103257 + ... + 103917.

It is an arithmetic number, because the mean of its divisors is an integer number (3233208).

Almost surely, 268471007 is an apocalyptic number.

68471007 is a deficient number, since it is larger than the sum of its proper divisors (34991649).

68471007 is a wasteful number, since it uses less digits than its factorization.

68471007 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 791.

The product of its (nonzero) digits is 9408, while the sum is 33.

The square root of 68471007 is about 8274.7209620627. The cubic root of 68471007 is about 409.1057388070.

The spelling of 68471007 in words is "sixty-eight million, four hundred seventy-one thousand, seven".

Divisors: 1 3 11 33 43 73 129 219 473 661 803 1419 1983 2409 3139 7271 9417 21813 28423 34529 48253 85269 103587 144759 312653 530783 937959 1592349 2074879 6224637 22823669 68471007