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20830334 = 273740213
BaseRepresentation
bin100111101110…
…1100001111110
31110012021211212
41033131201332
520313032314
62022244422
7342024560
oct117354176
943167755
1020830334
1110838158
126b86712
134414355
142aa3330
151c66e3e
hex13dd87e

20830334 has 16 divisors (see below), whose sum is σ = 36675168. Its totient is φ = 8685792.

The previous prime is 20830333. The next prime is 20830339. The reversal of 20830334 is 43303802.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20830333) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19589 + ... + 20624.

It is an arithmetic number, because the mean of its divisors is an integer number (2292198).

Almost surely, 220830334 is an apocalyptic number.

20830334 is a deficient number, since it is larger than the sum of its proper divisors (15844834).

20830334 is a wasteful number, since it uses less digits than its factorization.

20830334 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40259.

The product of its (nonzero) digits is 1728, while the sum is 23.

The square root of 20830334 is about 4564.0260735452. The cubic root of 20830334 is about 275.1473986669.

The spelling of 20830334 in words is "twenty million, eight hundred thirty thousand, three hundred thirty-four".

Divisors: 1 2 7 14 37 74 259 518 40213 80426 281491 562982 1487881 2975762 10415167 20830334