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10031155045220 = 2253138363166947
BaseRepresentation
bin1001000111111000111101…
…1011101110001101100100
31022111222011102221112101002
42101332033123232031210
52303322301142421340
633200125441452432
72053504242016031
oct221761733561544
938458142845332
1010031155045220
113218209569681
121160131641118
13579c1a904c1a
14269720b24388
15125e00177715
hex91f8f6ee364

10031155045220 has 96 divisors (see below), whose sum is σ = 21836608045056. Its totient is φ = 3866693846400.

The previous prime is 10031155045169. The next prime is 10031155045369. The reversal of 10031155045220 is 2254055113001.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 149803787 + ... + 149870733.

It is an arithmetic number, because the mean of its divisors is an integer number (227464667136).

Almost surely, 210031155045220 is an apocalyptic number.

10031155045220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 10031155045220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10918304022528).

10031155045220 is an abundant number, since it is smaller than the sum of its proper divisors (11805452999836).

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

10031155045220 is a wasteful number, since it uses less digits than its factorization.

10031155045220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68001 (or 67999 counting only the distinct ones).

The product of its (nonzero) digits is 6000, while the sum is 29.

The spelling of 10031155045220 in words is "ten trillion, thirty-one billion, one hundred fifty-five million, forty-five thousand, two hundred twenty".

Divisors: 1 2 4 5 10 20 31 62 124 155 310 383 620 631 766 1262 1532 1915 2524 3155 3830 6310 7660 11873 12620 19561 23746 39122 47492 59365 66947 78244 97805 118730 133894 195610 237460 241673 267788 334735 391220 483346 669470 966692 1208365 1338940 2075357 2416730 4150714 4833460 7491863 8301428 10376785 14983726 20753570 25640701 29967452 37459315 41507140 42243557 51281402 74918630 84487114 102562804 128203505 149837260 168974228 211217785 256407010 422435570 512814020 794861731 844871140 1309550267 1589723462 2619100534 3179446924 3974308655 5238201068 6547751335 7948617310 13095502670 15897234620 16179282331 26191005340 32358564662 64717129324 80896411655 161792823310 323585646620 501557752261 1003115504522 2006231009044 2507788761305 5015577522610 10031155045220