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808156928 = 2814921187
BaseRepresentation
bin110000001010110…
…111111100000000
32002022200121220002
4300022313330000
53123342010203
6212105335132
726012135435
oct6012677400
92068617802
10808156928
11385202297
121a67974a8
13cb57a887
147948db8c
154ae38d88
hex302b7f00

808156928 has 36 divisors (see below), whose sum is σ = 1624060200. Its totient is φ = 401347584.

The previous prime is 808156919. The next prime is 808156933. The reversal of 808156928 is 829651808.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 27551 + ... + 48737.

Almost surely, 2808156928 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 808156928, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (812030100).

808156928 is an abundant number, since it is smaller than the sum of its proper divisors (815903272).

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

808156928 is a wasteful number, since it uses less digits than its factorization.

808156928 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21352 (or 21338 counting only the distinct ones).

The product of its (nonzero) digits is 276480, while the sum is 47.

The square root of 808156928 is about 28428.1010269768. The cubic root of 808156928 is about 931.4621959404.

The spelling of 808156928 in words is "eight hundred eight million, one hundred fifty-six thousand, nine hundred twenty-eight".

Divisors: 1 2 4 8 16 32 64 128 149 256 298 596 1192 2384 4768 9536 19072 21187 38144 42374 84748 169496 338992 677984 1355968 2711936 3156863 5423872 6313726 12627452 25254904 50509808 101019616 202039232 404078464 808156928