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68476833 = 34172232
BaseRepresentation
bin1000001010011…
…01111110100001
311202211222120000
410011031332201
5120012224313
610443410213
71461020625
oct405157641
9152758500
1068476833
1135720727
121ab23969
1311257449
149147185
156029673
hex414dfa1

68476833 has 30 divisors (see below), whose sum is σ = 108797634. Its totient is φ = 42773184.

The previous prime is 68476829. The next prime is 68476883. The reversal of 68476833 is 33867486.

It can be written as a sum of positive squares in only one way, i.e., 64448784 + 4028049 = 8028^2 + 2007^2 .

It is not a de Polignac number, because 68476833 - 22 = 68476829 is a prime.

It is not an unprimeable number, because it can be changed into a prime (68476813) 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 29 ways as a sum of consecutive naturals, for example, 306960 + ... + 307182.

Almost surely, 268476833 is an apocalyptic number.

It is an amenable number.

68476833 is a deficient number, since it is larger than the sum of its proper divisors (40320801).

68476833 is an equidigital number, since it uses as much as digits as its factorization.

68476833 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 475 (or 243 counting only the distinct ones).

The product of its digits is 580608, while the sum is 45.

The square root of 68476833 is about 8275.0729906146. The cubic root of 68476833 is about 409.1173416860.

The spelling of 68476833 in words is "sixty-eight million, four hundred seventy-six thousand, eight hundred thirty-three".

Divisors: 1 3 9 17 27 51 81 153 223 459 669 1377 2007 3791 6021 11373 18063 34119 49729 102357 149187 307071 447561 845393 1342683 2536179 4028049 7608537 22825611 68476833