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205103514 = 23721163421
BaseRepresentation
bin11000011100110…
…10000110011010
3112021221100010110
430032122012122
5410001303024
632204025150
75040231300
oct1416320632
9467840113
10205103514
11a5859340
12588321b6
1333653235
141d350270
1513016629
hexc39a19a

205103514 has 48 divisors (see below), whose sum is σ = 520567776. Its totient is φ = 53272800.

The previous prime is 205103491. The next prime is 205103527. The reversal of 205103514 is 415301502.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 28477 + ... + 34944.

It is an arithmetic number, because the mean of its divisors is an integer number (10845162).

Almost surely, 2205103514 is an apocalyptic number.

205103514 is an abundant number, since it is smaller than the sum of its proper divisors (315464262).

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

205103514 is a wasteful number, since it uses less digits than its factorization.

205103514 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63451 (or 63444 counting only the distinct ones).

The product of its (nonzero) digits is 600, while the sum is 21.

The square root of 205103514 is about 14321.4354727450. The cubic root of 205103514 is about 589.7360822880.

The spelling of 205103514 in words is "two hundred five million, one hundred three thousand, five hundred fourteen".

Divisors: 1 2 3 6 7 11 14 21 22 33 42 49 66 77 98 147 154 231 294 462 539 1078 1617 3234 63421 126842 190263 380526 443947 697631 887894 1331841 1395262 2092893 2663682 3107629 4185786 4883417 6215258 9322887 9766834 14650251 18645774 29300502 34183919 68367838 102551757 205103514