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20201214 = 2311307997
BaseRepresentation
bin100110100001…
…1111011111110
31102000022212010
41031003323332
520132414324
62000552050
7333464445
oct115037376
942008763
1020201214
1110448520
126922626
134253ba7
14297bd5c
151b90829
hex1343efe

20201214 has 32 divisors (see below), whose sum is σ = 44263296. Its totient is φ = 6095520.

The previous prime is 20201191. The next prime is 20201227. The reversal of 20201214 is 41210202.

It is a self number, because there is not a number n which added to its sum of digits gives 20201214.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19764 + ... + 20760.

It is an arithmetic number, because the mean of its divisors is an integer number (1383228).

Almost surely, 220201214 is an apocalyptic number.

20201214 is an abundant number, since it is smaller than the sum of its proper divisors (24062082).

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

20201214 is a wasteful number, since it uses less digits than its factorization.

20201214 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1320.

The product of its (nonzero) digits is 32, while the sum is 12.

The square root of 20201214 is about 4494.5760645471. The cubic root of 20201214 is about 272.3490239072.

Adding to 20201214 its reverse (41210202), we get a palindrome (61411416).

The spelling of 20201214 in words is "twenty million, two hundred one thousand, two hundred fourteen".

Divisors: 1 2 3 6 11 22 33 66 307 614 921 997 1842 1994 2991 3377 5982 6754 10131 10967 20262 21934 32901 65802 306079 612158 918237 1836474 3366869 6733738 10100607 20201214