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28917754005 = 357239343883
BaseRepresentation
bin11010111011101000…
…011110100010010101
32202122022212002222010
4122323220132202111
5433210421112010
621141251454433
72042415565500
oct327350364225
982568762863
1028917754005
111129a355658
1257305b7419
13295b0bc45a
14158480c137
15b43aed620
hex6bba1e895

28917754005 has 24 divisors (see below), whose sum is σ = 53822433312. Its totient is φ = 13219544352.

The previous prime is 28917753919. The next prime is 28917754009. The reversal of 28917754005 is 50045771982.

It is not a de Polignac number, because 28917754005 - 27 = 28917753877 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28917754009) 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 23 ways as a sum of consecutive naturals, for example, 19671207 + ... + 19672676.

It is an arithmetic number, because the mean of its divisors is an integer number (2242601388).

Almost surely, 228917754005 is an apocalyptic number.

It is an amenable number.

28917754005 is a deficient number, since it is larger than the sum of its proper divisors (24904679307).

28917754005 is a wasteful number, since it uses less digits than its factorization.

28917754005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39343905 (or 39343898 counting only the distinct ones).

The product of its (nonzero) digits is 705600, while the sum is 48.

The spelling of 28917754005 in words is "twenty-eight billion, nine hundred seventeen million, seven hundred fifty-four thousand, five".

Divisors: 1 3 5 7 15 21 35 49 105 147 245 735 39343883 118031649 196719415 275407181 590158245 826221543 1377035905 1927850267 4131107715 5783550801 9639251335 28917754005