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68362765 = 513672553
BaseRepresentation
bin1000001001100…
…10001000001101
311202122012002021
410010302020031
5120000102030
610441130141
71460034232
oct404621015
9152565067
1068362765
1135652a59
121aa89951
1311217553
149117789
15600597a
hex413220d

68362765 has 4 divisors (see below), whose sum is σ = 82035324. Its totient is φ = 54690208.

The previous prime is 68362753. The next prime is 68362793. The reversal of 68362765 is 56726386.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 17867529 + 50495236 = 4227^2 + 7106^2 .

It is a cyclic number.

It is not a de Polignac number, because 68362765 - 215 = 68329997 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6836272 + ... + 6836281.

It is an arithmetic number, because the mean of its divisors is an integer number (20508831).

Almost surely, 268362765 is an apocalyptic number.

It is an amenable number.

68362765 is a deficient number, since it is larger than the sum of its proper divisors (13672559).

68362765 is a wasteful number, since it uses less digits than its factorization.

68362765 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13672558.

The product of its digits is 362880, while the sum is 43.

The square root of 68362765 is about 8268.1778524654. The cubic root of 68362765 is about 408.8900476194.

The spelling of 68362765 in words is "sixty-eight million, three hundred sixty-two thousand, seven hundred sixty-five".

Divisors: 1 5 13672553 68362765