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28814147681683 = 7133183111228993
BaseRepresentation
bin1101000110100110100010…
…00010010111110110010011
310210000121100111100100021011
412203103101002113312103
512234042333301303213
6141141011532311351
76032516304114430
oct643232102276623
9123017314310234
1028814147681683
1191aa014201681
12329445b912557
131310215c30030
1471887dbbcb87
1534e7c719403d
hex1a34d1097d93

28814147681683 has 32 divisors (see below), whose sum is σ = 36611986890752. Its totient is φ = 22059914803200.

The previous prime is 28814147681593. The next prime is 28814147681741. The reversal of 28814147681683 is 38618674141882.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-28814147681683 is a prime.

It is not an unprimeable number, because it can be changed into a prime (28814147684683) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 22830835 + ... + 24059827.

It is an arithmetic number, because the mean of its divisors is an integer number (1144124590336).

Almost surely, 228814147681683 is an apocalyptic number.

28814147681683 is a deficient number, since it is larger than the sum of its proper divisors (7797839209069).

28814147681683 is a wasteful number, since it uses less digits than its factorization.

28814147681683 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1237355.

The product of its digits is 99090432, while the sum is 67.

The spelling of 28814147681683 in words is "twenty-eight trillion, eight hundred fourteen billion, one hundred forty-seven million, six hundred eighty-one thousand, six hundred eighty-three".

Divisors: 1 7 13 31 91 217 403 2821 8311 58177 108043 257641 756301 1228993 1803487 3349333 8602951 15976909 23445331 38098783 111838363 266691481 495284179 3466989253 10214160823 71499125761 132784090699 316638985513 929488634893 2216472898591 4116306811669 28814147681683