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28690000527 = 329329770121
BaseRepresentation
bin11010101110000011…
…101010101010001111
32202001110022000221010
4122232003222222033
5432224120004102
621102514140303
72033651660256
oct325603525217
982043260833
1028690000527
1111192837041
125688281693
132922b68896
14156248379d
15b2db10d6c
hex6ae0eaa8f

28690000527 has 8 divisors (see below), whose sum is σ = 39572414640. Its totient is φ = 18467126720.

The previous prime is 28690000519. The next prime is 28690000529. The reversal of 28690000527 is 72500009682.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 28690000527 - 23 = 28690000519 is a prime.

It is a super-2 number, since 2×286900005272 (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28690000529) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 164884974 + ... + 164885147.

It is an arithmetic number, because the mean of its divisors is an integer number (4946551830).

Almost surely, 228690000527 is an apocalyptic number.

28690000527 is a deficient number, since it is larger than the sum of its proper divisors (10882414113).

28690000527 is a wasteful number, since it uses less digits than its factorization.

28690000527 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 329770153.

The product of its (nonzero) digits is 60480, while the sum is 39.

The spelling of 28690000527 in words is "twenty-eight billion, six hundred ninety million, five hundred twenty-seven", and thus it is an aban number.

Divisors: 1 3 29 87 329770121 989310363 9563333509 28690000527