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68760901 = 11591011049
BaseRepresentation
bin1000001100100…
…11010101000101
311210101102020001
410012103111011
5120100322101
610453441301
71463313046
oct406232505
9153342201
1068760901
11358a50a0
121b040231
1311326831
1491bc8cd
156083901
hex4193545

68760901 has 16 divisors (see below), whose sum is σ = 77112000. Its totient is φ = 60784000.

The previous prime is 68760893. The next prime is 68760907. The reversal of 68760901 is 10906786.

It is a cyclic number.

It is not a de Polignac number, because 68760901 - 23 = 68760893 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 (68760907) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 65025 + ... + 66073.

It is an arithmetic number, because the mean of its divisors is an integer number (4819500).

Almost surely, 268760901 is an apocalyptic number.

It is an amenable number.

68760901 is a deficient number, since it is larger than the sum of its proper divisors (8351099).

68760901 is a wasteful number, since it uses less digits than its factorization.

68760901 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1220.

The product of its (nonzero) digits is 18144, while the sum is 37.

The square root of 68760901 is about 8292.2193048665. The cubic root of 68760901 is about 409.6822860862.

The spelling of 68760901 in words is "sixty-eight million, seven hundred sixty thousand, nine hundred one".

Divisors: 1 11 59 101 649 1049 1111 5959 11539 61891 65549 105949 680801 1165439 6250991 68760901