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68541803 = 116231073
BaseRepresentation
bin1000001010111…
…01110101101011
311202222021200022
410011131311223
5120021314203
610445031055
71461411221
oct405356553
9152867608
1068541803
1135765520
121ab5548b
131127aba5
149162b11
15603da38
hex415dd6b

68541803 has 4 divisors (see below), whose sum is σ = 74772888. Its totient is φ = 62310720.

The previous prime is 68541779. The next prime is 68541859. The reversal of 68541803 is 30814586.

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 68541803 - 210 = 68540779 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (68541103) 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, 3115526 + ... + 3115547.

It is an arithmetic number, because the mean of its divisors is an integer number (18693222).

Almost surely, 268541803 is an apocalyptic number.

68541803 is a deficient number, since it is larger than the sum of its proper divisors (6231085).

68541803 is a wasteful number, since it uses less digits than its factorization.

68541803 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6231084.

The product of its (nonzero) digits is 23040, while the sum is 35.

The square root of 68541803 is about 8278.9977050365. The cubic root of 68541803 is about 409.2466893334.

The spelling of 68541803 in words is "sixty-eight million, five hundred forty-one thousand, eight hundred three".

Divisors: 1 11 6231073 68541803