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28849698813271 = 7172418271216387
BaseRepresentation
bin1101000111101000110000…
…00011001011010101010111
310210011000010010001221121111
412203310120003023111113
512240133140344011041
6141205211344355451
76035215300544410
oct643643003132527
9123130103057544
1028849698813271
1192130a7962a66
12329b321915b87
13131369039c27b
1471a493590807
153506a82dc981
hex1a3d180cb557

28849698813271 has 32 divisors (see below), whose sum is σ = 35097834511872. Its totient is φ = 23149090621440.

The previous prime is 28849698813251. The next prime is 28849698813307. The reversal of 28849698813271 is 17231889694882.

It is not a de Polignac number, because 28849698813271 - 215 = 28849698780503 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28849698813251) 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, 23109340 + ... + 24325726.

It is an arithmetic number, because the mean of its divisors is an integer number (1096807328496).

Almost surely, 228849698813271 is an apocalyptic number.

28849698813271 is a deficient number, since it is larger than the sum of its proper divisors (6248135698601).

28849698813271 is a wasteful number, since it uses less digits than its factorization.

28849698813271 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1217479.

The product of its digits is 668860416, while the sum is 76.

The spelling of 28849698813271 in words is "twenty-eight trillion, eight hundred forty-nine billion, six hundred ninety-eight million, eight hundred thirteen thousand, two hundred seventy-one".

Divisors: 1 7 17 119 241 827 1687 4097 5789 14059 28679 98413 199307 1216387 1395149 3388219 8514709 20678579 23717533 144750053 293149267 1005952049 2052044869 4983537539 7041664343 17101184833 34884762773 119708293831 242434443809 1697041106663 4121385544753 28849698813271