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20792606289 = 3713101754093
BaseRepresentation
bin10011010111010101…
…011111111001010001
31222200001221211200020
4103113111133321101
5320040401400124
613315121414053
71334155144260
oct232725377121
958601854606
1020792606289
1188aa97a944
12404349a329
131c6496c340
1410136885d7
1581a632379
hex4d755fe51

20792606289 has 32 divisors (see below), whose sum is σ = 34459079424. Its totient is φ = 10858924800.

The previous prime is 20792606207. The next prime is 20792606291. The reversal of 20792606289 is 98260629702.

It is not a de Polignac number, because 20792606289 - 28 = 20792606033 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20792606089) 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, 349474 + ... + 404619.

It is an arithmetic number, because the mean of its divisors is an integer number (1076846232).

Almost surely, 220792606289 is an apocalyptic number.

It is an amenable number.

20792606289 is a deficient number, since it is larger than the sum of its proper divisors (13666473135).

20792606289 is a wasteful number, since it uses less digits than its factorization.

20792606289 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 754217.

The product of its (nonzero) digits is 1306368, while the sum is 51.

The spelling of 20792606289 in words is "twenty billion, seven hundred ninety-two million, six hundred six thousand, two hundred eighty-nine".

Divisors: 1 3 7 13 21 39 91 101 273 303 707 1313 2121 3939 9191 27573 754093 2262279 5278651 9803209 15835953 29409627 68622463 76163393 205867389 228490179 533143751 990124109 1599431253 2970372327 6930868763 20792606289