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68347053 = 3223734523
BaseRepresentation
bin1000001001011…
…10010010101101
311202121101112100
410010232102231
5114444101203
610440525313
71456640355
oct404562255
9152541470
1068347053
1135642175
121aa80839
1311210358
149111b65
156000ea3
hex412e4ad

68347053 has 24 divisors (see below), whose sum is σ = 104450112. Its totient is φ = 42977088.

The previous prime is 68347043. The next prime is 68347057. The reversal of 68347053 is 35074386.

It is a happy number.

It is not a de Polignac number, because 68347053 - 28 = 68346797 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 68346999 and 68347017.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68347057) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 12850 + ... + 17372.

It is an arithmetic number, because the mean of its divisors is an integer number (4352088).

Almost surely, 268347053 is an apocalyptic number.

It is an amenable number.

68347053 is a deficient number, since it is larger than the sum of its proper divisors (36103059).

68347053 is a wasteful number, since it uses less digits than its factorization.

68347053 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4625 (or 4622 counting only the distinct ones).

The product of its (nonzero) digits is 60480, while the sum is 36.

The square root of 68347053 is about 8267.2276489764. The cubic root of 68347053 is about 408.8587197824.

The spelling of 68347053 in words is "sixty-eight million, three hundred forty-seven thousand, fifty-three".

Divisors: 1 3 9 23 69 73 207 219 657 1679 4523 5037 13569 15111 40707 104029 312087 330179 936261 990537 2971611 7594117 22782351 68347053