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28674779328001 = 293119413378719
BaseRepresentation
bin1101000010100010111100…
…00010010010111000000001
310202112021121200012102101001
412201101132002102320001
512224301422001444001
6140553002313012001
76016453522500532
oct641213602227001
9122467550172331
1028674779328001
1191559a6420794
1232714456b4001
131300035197071
14711c1c414689
1534ad6bb42001
hex1a145e092e01

28674779328001 has 16 divisors (see below), whose sum is σ = 29790579686400. Its totient is φ = 27567635905600.

The previous prime is 28674779327969. The next prime is 28674779328017. The reversal of 28674779328001 is 10082397747682.

It is a cyclic number.

It is not a de Polignac number, because 28674779328001 - 25 = 28674779327969 is a prime.

It is a super-2 number, since 2×286747793280012 (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (28674779328071) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6797520 + ... + 10176238.

It is an arithmetic number, because the mean of its divisors is an integer number (1861911230400).

Almost surely, 228674779328001 is an apocalyptic number.

It is an amenable number.

28674779328001 is a deficient number, since it is larger than the sum of its proper divisors (1115800358399).

28674779328001 is a wasteful number, since it uses less digits than its factorization.

28674779328001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3380000.

The product of its (nonzero) digits is 56899584, while the sum is 64.

The spelling of 28674779328001 in words is "twenty-eight trillion, six hundred seventy-four billion, seven hundred seventy-nine million, three hundred twenty-eight thousand, one".

Divisors: 1 29 311 941 9019 27289 292651 3378719 8486879 97982851 1050781609 3179374579 30472666661 92201862791 988785494069 28674779328001