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485699128 = 23194767987
BaseRepresentation
bin11100111100110…
…010111000111000
31020211221001221121
4130330302320320
51443314333003
6120110115024
715015242305
oct3474627070
91224831847
10485699128
1122a189a42
121167aba74
1379818a45
14487120ac
152c990cbd
hex1cf32e38

485699128 has 32 divisors (see below), whose sum is σ = 979027200. Its totient is φ = 225169632.

The previous prime is 485699107. The next prime is 485699167. The reversal of 485699128 is 821996584.

It is a congruent number.

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, 26850 + ... + 41137.

It is an arithmetic number, because the mean of its divisors is an integer number (30594600).

Almost surely, 2485699128 is an apocalyptic number.

It is an amenable number.

485699128 is an abundant number, since it is smaller than the sum of its proper divisors (493328072).

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

485699128 is a wasteful number, since it uses less digits than its factorization.

485699128 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68059 (or 68055 counting only the distinct ones).

The product of its digits is 1244160, while the sum is 52.

The square root of 485699128 is about 22038.5827130512. The cubic root of 485699128 is about 786.0601403868.

The spelling of 485699128 in words is "four hundred eighty-five million, six hundred ninety-nine thousand, one hundred twenty-eight".

Divisors: 1 2 4 8 19 38 47 76 94 152 188 376 893 1786 3572 7144 67987 135974 271948 543896 1291753 2583506 3195389 5167012 6390778 10334024 12781556 25563112 60712391 121424782 242849564 485699128