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28838178608 = 2429131474437
BaseRepresentation
bin11010110110111000…
…111010111100110000
32202102210010021001012
4122312320322330300
5433030033203413
621125330130052
72040431321321
oct326670727460
982383107035
1028838178608
1111259444468
125709a20928
13294777a415
141578016448
15b3bb307a8
hex6b6e3af30

28838178608 has 40 divisors (see below), whose sum is σ = 58242008880. Its totient is φ = 13815576320.

The previous prime is 28838178601. The next prime is 28838178641. The reversal of 28838178608 is 80687183882.

It is not an unprimeable number, because it can be changed into a prime (28838178601) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 176435 + ... + 298002.

It is an arithmetic number, because the mean of its divisors is an integer number (1456050222).

Almost surely, 228838178608 is an apocalyptic number.

It is an amenable number.

28838178608 is an abundant number, since it is smaller than the sum of its proper divisors (29403830272).

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

28838178608 is a wasteful number, since it uses less digits than its factorization.

28838178608 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 474605 (or 474599 counting only the distinct ones).

The product of its (nonzero) digits is 8257536, while the sum is 59.

The spelling of 28838178608 in words is "twenty-eight billion, eight hundred thirty-eight million, one hundred seventy-eight thousand, six hundred eight".

Divisors: 1 2 4 8 16 29 58 116 131 232 262 464 524 1048 2096 3799 7598 15196 30392 60784 474437 948874 1897748 3795496 7590992 13758673 27517346 55034692 62151247 110069384 124302494 220138768 248604988 497209976 994419952 1802386163 3604772326 7209544652 14419089304 28838178608