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68397301 = 7891011087
BaseRepresentation
bin1000001001110…
…10100011110101
311202200221110101
410010322203311
5120002203201
610441554101
71460240020
oct404724365
9152627411
1068397301
11356769a5
121aaa5931
131122a19b
1491261b7
156010d01
hex413a8f5

68397301 has 16 divisors (see below), whose sum is σ = 79902720. Its totient is φ = 57340800.

The previous prime is 68397299. The next prime is 68397311. The reversal of 68397301 is 10379386.

It is a cyclic number.

It is not a de Polignac number, because 68397301 - 21 = 68397299 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 (68397311) 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 15 ways as a sum of consecutive naturals, for example, 62380 + ... + 63466.

It is an arithmetic number, because the mean of its divisors is an integer number (4993920).

Almost surely, 268397301 is an apocalyptic number.

It is an amenable number.

68397301 is a deficient number, since it is larger than the sum of its proper divisors (11505419).

68397301 is a wasteful number, since it uses less digits than its factorization.

68397301 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1284.

The product of its (nonzero) digits is 27216, while the sum is 37.

The square root of 68397301 is about 8270.2660779445. The cubic root of 68397301 is about 408.9588913795.

The spelling of 68397301 in words is "sixty-eight million, three hundred ninety-seven thousand, three hundred one".

Divisors: 1 7 89 101 623 707 1087 7609 8989 62923 96743 109787 677201 768509 9771043 68397301