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68068659 = 3196011987
BaseRepresentation
bin1000000111010…
…10010100110011
311202002020122110
410003222110303
5114411144114
610430540403
71454400621
oct403522463
9152066573
1068068659
1135471a9a
121a967703
1311143719
14907c511
155e98759
hex40ea533

68068659 has 16 divisors (see below), whose sum is σ = 95742080. Its totient is φ = 42897600.

The previous prime is 68068657. The next prime is 68068667. The reversal of 68068659 is 95686086.

It is not a de Polignac number, because 68068659 - 21 = 68068657 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (68068657) 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, 33264 + ... + 35250.

It is an arithmetic number, because the mean of its divisors is an integer number (5983880).

Almost surely, 268068659 is an apocalyptic number.

68068659 is a deficient number, since it is larger than the sum of its proper divisors (27673421).

68068659 is a wasteful number, since it uses less digits than its factorization.

68068659 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2610.

The product of its (nonzero) digits is 622080, while the sum is 48.

The square root of 68068659 is about 8250.3732642833. The cubic root of 68068659 is about 408.3028376874.

The spelling of 68068659 in words is "sixty-eight million, sixty-eight thousand, six hundred fifty-nine".

Divisors: 1 3 19 57 601 1803 1987 5961 11419 34257 37753 113259 1194187 3582561 22689553 68068659