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8478838842 = 231783125871
BaseRepresentation
bin1111110010110000…
…01101000000111010
3210212220102122022020
413321120031000322
5114331040320332
63521202535310
7420053640525
oct77130150072
923786378266
108478838842
1136610a1131
121787667536
13a517c9406
145a6111bbc
1534958382c
hex1f960d03a

8478838842 has 16 divisors (see below), whose sum is σ = 17955188352. Its totient is φ = 2660027840.

The previous prime is 8478838789. The next prime is 8478838903. The reversal of 8478838842 is 2488388748.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 41562834 + ... + 41563037.

It is an arithmetic number, because the mean of its divisors is an integer number (1122199272).

Almost surely, 28478838842 is an apocalyptic number.

8478838842 is an abundant number, since it is smaller than the sum of its proper divisors (9476349510).

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

8478838842 is a wasteful number, since it uses less digits than its factorization.

8478838842 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83125893.

The product of its digits is 22020096, while the sum is 60.

The square root of 8478838842 is about 92080.6105648741. The cubic root of 8478838842 is about 2039.1325642133.

The spelling of 8478838842 in words is "eight billion, four hundred seventy-eight million, eight hundred thirty-eight thousand, eight hundred forty-two".

Divisors: 1 2 3 6 17 34 51 102 83125871 166251742 249377613 498755226 1413139807 2826279614 4239419421 8478838842