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213103982 = 271331107353
BaseRepresentation
bin11001011001110…
…11010101101110
3112211222210201002
430230323111232
5414023311412
633051320302
75165232260
oct1454732556
9484883632
10213103982
11aa3231a3
125b450092
13351c4940
1420433b30
1513a96dc2
hexcb3b56e

213103982 has 64 divisors (see below), whose sum is σ = 411070464. Its totient is φ = 80593920.

The previous prime is 213103973. The next prime is 213103997. The reversal of 213103982 is 289301312.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 603518 + ... + 603870.

It is an arithmetic number, because the mean of its divisors is an integer number (6422976).

Almost surely, 2213103982 is an apocalyptic number.

213103982 is a deficient number, since it is larger than the sum of its proper divisors (197966482).

213103982 is a wasteful number, since it uses less digits than its factorization.

213103982 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 513.

The product of its (nonzero) digits is 2592, while the sum is 29.

The square root of 213103982 is about 14598.0814492864. The cubic root of 213103982 is about 597.3064277277.

The spelling of 213103982 in words is "two hundred thirteen million, one hundred three thousand, nine hundred eighty-two".

Divisors: 1 2 7 13 14 26 31 62 91 107 182 214 217 353 403 434 706 749 806 1391 1498 2471 2782 2821 3317 4589 4942 5642 6634 9178 9737 10943 19474 21886 23219 32123 37771 43121 46438 64246 75542 76601 86242 142259 153202 264397 284518 301847 491023 528794 603694 982046 995813 1170901 1991626 2341802 3437161 6874322 8196307 15221713 16392614 30443426 106551991 213103982