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28746531001 = 59837877459
BaseRepresentation
bin11010110001011011…
…010100000010111001
32202012101200002011101
4122301123110002321
5432333102443001
621112253531401
72035236324166
oct326133240271
982171602141
1028746531001
1111211738241
1256a31a3b61
13293179c576
141569b9b06d
15b33a7aa01
hex6b16d40b9

28746531001 has 16 divisors (see below), whose sum is σ = 29627539200. Its totient is φ = 27879614928.

The previous prime is 28746530999. The next prime is 28746531007. The reversal of 28746531001 is 10013564782.

It is a cyclic number.

It is not a de Polignac number, because 28746531001 - 21 = 28746530999 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (28746531007) 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, 3850210 + ... + 3857668.

It is an arithmetic number, because the mean of its divisors is an integer number (1851721200).

Almost surely, 228746531001 is an apocalyptic number.

It is an amenable number.

28746531001 is a deficient number, since it is larger than the sum of its proper divisors (881008199).

28746531001 is an equidigital number, since it uses as much as digits as its factorization.

28746531001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8388.

The product of its (nonzero) digits is 40320, while the sum is 37.

The spelling of 28746531001 in words is "twenty-eight billion, seven hundred forty-six million, five hundred thirty-one thousand, one".

Divisors: 1 59 83 787 4897 7459 46433 65321 440081 619097 3853939 5870233 36526723 346343747 487229339 28746531001