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28999084406748 = 2234158941228469
BaseRepresentation
bin1101001011111111000000…
…00111111111011111011100
310210200021201001102101011220
412211333200013333133130
512300110111102003443
6141401555004213340
76052054226255121
oct645774007773734
9123607631371156
1028999084406748
119270496163425
12330427283a250
1313247a957a671
147237c54c8748
153544ecea5a83
hex1a5fe01ff7dc

28999084406748 has 24 divisors (see below), whose sum is σ = 69314884680720. Its totient is φ = 9430596554880.

The previous prime is 28999084406729. The next prime is 28999084406779. The reversal of 28999084406748 is 84760448099982.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 29470613743 + ... + 29470614726.

It is an arithmetic number, because the mean of its divisors is an integer number (2888120195030).

Almost surely, 228999084406748 is an apocalyptic number.

It is an amenable number.

28999084406748 is an abundant number, since it is smaller than the sum of its proper divisors (40315800273972).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

28999084406748 is a wasteful number, since it uses less digits than its factorization.

28999084406748 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58941228517 (or 58941228515 counting only the distinct ones).

The product of its (nonzero) digits is 2006581248, while the sum is 78.

The spelling of 28999084406748 in words is "twenty-eight trillion, nine hundred ninety-nine billion, eighty-four million, four hundred six thousand, seven hundred forty-eight".

Divisors: 1 2 3 4 6 12 41 82 123 164 246 492 58941228469 117882456938 176823685407 235764913876 353647370814 707294741628 2416590367229 4833180734458 7249771101687 9666361468916 14499542203374 28999084406748