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69628067 = 71980677
BaseRepresentation
bin1000010011001…
…11000010100011
311212000110202022
410021213002203
5120311044232
610524212055
71503554165
oct411470243
9155013668
1069628067
1136337663
121b39a02b
131156b452
149366935
1561a5812
hex42670a3

69628067 has 4 divisors (see below), whose sum is σ = 70608816. Its totient is φ = 68647320.

The previous prime is 69628049. The next prime is 69628079. The reversal of 69628067 is 76082696.

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 69628067 - 212 = 69623971 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (69628367) 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, 490268 + ... + 490409.

It is an arithmetic number, because the mean of its divisors is an integer number (17652204).

Almost surely, 269628067 is an apocalyptic number.

69628067 is a deficient number, since it is larger than the sum of its proper divisors (980749).

69628067 is an equidigital number, since it uses as much as digits as its factorization.

69628067 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 980748.

The product of its (nonzero) digits is 217728, while the sum is 44.

The square root of 69628067 is about 8344.3434133549. The cubic root of 69628067 is about 411.3973086100.

The spelling of 69628067 in words is "sixty-nine million, six hundred twenty-eight thousand, sixty-seven".

Divisors: 1 71 980677 69628067