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68092321 = 1137293571
BaseRepresentation
bin1000000111100…
…00000110100001
311202010110002211
410003300012201
5114412423241
610431242121
71454526613
oct403600641
9152113084
1068092321
1135488850
121a979341
131115141b
149086db3
155ea0781
hex40f01a1

68092321 has 16 divisors (see below), whose sum is σ = 76684608. Its totient is φ = 59918400.

The previous prime is 68092309. The next prime is 68092357. The reversal of 68092321 is 12329086.

It is a cyclic number.

It is not a de Polignac number, because 68092321 - 25 = 68092289 is a prime.

It is not an unprimeable number, because it can be changed into a prime (68098321) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 118966 + ... + 119536.

It is an arithmetic number, because the mean of its divisors is an integer number (4792788).

Almost surely, 268092321 is an apocalyptic number.

It is an amenable number.

68092321 is a deficient number, since it is larger than the sum of its proper divisors (8592287).

68092321 is a wasteful number, since it uses less digits than its factorization.

68092321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 912.

The product of its (nonzero) digits is 5184, while the sum is 31.

The square root of 68092321 is about 8251.8071354098. The cubic root of 68092321 is about 408.3501435627.

The spelling of 68092321 in words is "sixty-eight million, ninety-two thousand, three hundred twenty-one".

Divisors: 1 11 37 293 407 571 3223 6281 10841 21127 119251 167303 232397 1840333 6190211 68092321