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20652814 = 2721322943
BaseRepresentation
bin100111011001…
…0001100001110
31102212021100001
41032302030032
520241342224
62014354514
7340355200
oct116621416
942767301
1020652814
1110726846
126abba3a
134381600
142a58770
151c2e544
hex13b230e

20652814 has 72 divisors (see below), whose sum is σ = 41306760. Its totient is φ = 7705152.

The previous prime is 20652809. The next prime is 20652859. The reversal of 20652814 is 41825602.

It is a super-2 number, since 2×206528142 = 853077452237192, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 480277 + ... + 480319.

It is an arithmetic number, because the mean of its divisors is an integer number (573705).

Almost surely, 220652814 is an apocalyptic number.

20652814 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

20652814 is a wasteful number, since it uses less digits than its factorization.

20652814 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 114 (or 94 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 28.

The square root of 20652814 is about 4544.5367200629. The cubic root of 20652814 is about 274.3635485385.

The spelling of 20652814 in words is "twenty million, six hundred fifty-two thousand, eight hundred fourteen".

Divisors: 1 2 7 13 14 26 29 43 49 58 86 91 98 169 182 203 301 338 377 406 559 602 637 754 1118 1183 1247 1274 1421 2107 2366 2494 2639 2842 3913 4214 4901 5278 7267 7826 8281 8729 9802 14534 16211 16562 17458 18473 27391 32422 34307 36946 50869 54782 61103 68614 101738 113477 122206 210743 226954 240149 356083 421486 480298 712166 794339 1475201 1588678 2950402 10326407 20652814