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2132447889 = 3111315493209
BaseRepresentation
bin111111100011010…
…1001001010010001
312111121120120120110
41333012221022101
513331401313024
6551333431533
7103562336145
oct17706511221
95447516513
102132447889
119a4790730
124b619b5a9
1327ca3c0b0
141632d5225
15c7326629
hex7f1a9291

2132447889 has 32 divisors (see below), whose sum is σ = 3343536000. Its totient is φ = 1191836160.

The previous prime is 2132447879. The next prime is 2132447939. The reversal of 2132447889 is 9887442312.

It is not a de Polignac number, because 2132447889 - 211 = 2132445841 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2132447839) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 662917 + ... + 666125.

It is an arithmetic number, because the mean of its divisors is an integer number (104485500).

Almost surely, 22132447889 is an apocalyptic number.

It is an amenable number.

2132447889 is a deficient number, since it is larger than the sum of its proper divisors (1211088111).

2132447889 is a wasteful number, since it uses less digits than its factorization.

2132447889 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4785.

The product of its digits is 774144, while the sum is 48.

The square root of 2132447889 is about 46178.4353242940. The cubic root of 2132447889 is about 1287.1410533479.

The spelling of 2132447889 in words is "two billion, one hundred thirty-two million, four hundred forty-seven thousand, eight hundred eighty-nine".

Divisors: 1 3 11 13 33 39 143 429 1549 3209 4647 9627 17039 20137 35299 41717 51117 60411 105897 125151 221507 458887 664521 1376661 4970741 14912223 54678151 64619633 164034453 193858899 710815963 2132447889