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1068428289 = 31619219977
BaseRepresentation
bin111111101011101…
…110110000000001
32202110102210002010
4333223232300001
54142004201124
6254004043133
735322330165
oct7753566001
92673383063
101068428289
114a9110a95
122599934a9
131404784b6
14a1c80ca5
1563beb529
hex3faeec01

1068428289 has 8 divisors (see below), whose sum is σ = 1425457440. Its totient is φ = 711842336.

The previous prime is 1068428279. The next prime is 1068428293. The reversal of 1068428289 is 9828248601.

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 1068428289 - 27 = 1068428161 is a prime.

It is a super-2 number, since 2×10684282892 = 2283078017470935042, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1068428239) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 105132 + ... + 114845.

It is an arithmetic number, because the mean of its divisors is an integer number (178182180).

Almost surely, 21068428289 is an apocalyptic number.

It is an amenable number.

1068428289 is a deficient number, since it is larger than the sum of its proper divisors (357029151).

1068428289 is a wasteful number, since it uses less digits than its factorization.

1068428289 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 221599.

The product of its (nonzero) digits is 442368, while the sum is 48.

The square root of 1068428289 is about 32686.8213352109. The cubic root of 1068428289 is about 1022.3080787480.

The spelling of 1068428289 in words is "one billion, sixty-eight million, four hundred twenty-eight thousand, two hundred eighty-nine".

Divisors: 1 3 1619 4857 219977 659931 356142763 1068428289