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68297627 = 471453141
BaseRepresentation
bin1000001001000…
…10001110011011
311202111212201202
410010202032123
5114441011002
610435504415
71456343306
oct404421633
9152455652
1068297627
1135609022
121aa5810b
13111c39c8
1490dbb3d
155ee1502
hex412239b

68297627 has 4 divisors (see below), whose sum is σ = 69750816. Its totient is φ = 66844440.

The previous prime is 68297623. The next prime is 68297657. The reversal of 68297627 is 72679286.

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 68297627 - 22 = 68297623 is a prime.

It is a super-2 number, since 2×682976272 = 9329131707662258, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (47), and also a Moran number because the ratio is a prime number: 1453141 = 68297627 / (6 + 8 + 2 + 9 + 7 + 6 + 2 + 7).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (68297623) 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 3 ways as a sum of consecutive naturals, for example, 726524 + ... + 726617.

It is an arithmetic number, because the mean of its divisors is an integer number (17437704).

Almost surely, 268297627 is an apocalyptic number.

68297627 is a deficient number, since it is larger than the sum of its proper divisors (1453189).

68297627 is a wasteful number, since it uses less digits than its factorization.

68297627 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1453188.

The product of its digits is 508032, while the sum is 47.

The square root of 68297627 is about 8264.2378353966. The cubic root of 68297627 is about 408.7601389686.

The spelling of 68297627 in words is "sixty-eight million, two hundred ninety-seven thousand, six hundred twenty-seven".

Divisors: 1 47 1453141 68297627