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2128440588 = 2231914991861
BaseRepresentation
bin111111011011101…
…0110110100001100
312111100000222120220
41332313112310030
513324340044323
6551111511340
7103513306101
oct17667266414
95440028526
102128440588
119a24a3a0a
124b4988550
1327bc68101
14162970aa8
15c6cd40e3
hex7edd6d0c

2128440588 has 48 divisors (see below), whose sum is σ = 5005056000. Its totient is φ = 703972800.

The previous prime is 2128440581. The next prime is 2128440619. The reversal of 2128440588 is 8850448212.

It is not an unprimeable number, because it can be changed into a prime (2128440581) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1142778 + ... + 1144638.

It is an arithmetic number, because the mean of its divisors is an integer number (104272000).

Almost surely, 22128440588 is an apocalyptic number.

It is an amenable number.

2128440588 is an abundant number, since it is smaller than the sum of its proper divisors (2876615412).

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

2128440588 is a wasteful number, since it uses less digits than its factorization.

2128440588 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2558 (or 2556 counting only the distinct ones).

The product of its (nonzero) digits is 163840, while the sum is 42.

The square root of 2128440588 is about 46135.0256096168. The cubic root of 2128440588 is about 1286.3342816271.

The spelling of 2128440588 in words is "two billion, one hundred twenty-eight million, four hundred forty thousand, five hundred eighty-eight".

Divisors: 1 2 3 4 6 12 191 382 499 573 764 998 1146 1497 1861 1996 2292 2994 3722 5583 5988 7444 11166 22332 95309 190618 285927 355451 381236 571854 710902 928639 1066353 1143708 1421804 1857278 2132706 2785917 3714556 4265412 5571834 11143668 177370049 354740098 532110147 709480196 1064220294 2128440588