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68873311 = 135297947
BaseRepresentation
bin1000001101011…
…10110001011111
311210121010102101
410012232301133
5120112421221
610500105531
71464261553
oct406566137
9153533371
1068873311
11359715a1
121b0952a7
1311365a50
14920b863
1560a6d91
hex41aec5f

68873311 has 4 divisors (see below), whose sum is σ = 74171272. Its totient is φ = 63575352.

The previous prime is 68873291. The next prime is 68873323. The reversal of 68873311 is 11337886.

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

It is a cyclic number.

It is not a de Polignac number, because 68873311 - 25 = 68873279 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 (68873111) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2648961 + ... + 2648986.

It is an arithmetic number, because the mean of its divisors is an integer number (18542818).

Almost surely, 268873311 is an apocalyptic number.

68873311 is a deficient number, since it is larger than the sum of its proper divisors (5297961).

68873311 is a wasteful number, since it uses less digits than its factorization.

68873311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5297960.

The product of its digits is 24192, while the sum is 37.

The square root of 68873311 is about 8298.9945776582. The cubic root of 68873311 is about 409.9054134375.

The spelling of 68873311 in words is "sixty-eight million, eight hundred seventy-three thousand, three hundred eleven".

Divisors: 1 13 5297947 68873311