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20671614 = 2327914537
BaseRepresentation
bin100111011011…
…0110001111110
31102220020010100
41032312301332
520242442424
62015021530
7340464045
oct116666176
942806110
1020671614
1110739987
126b0a8a6
13438a032
142a6155c
151c34dc9
hex13b6c7e

20671614 has 24 divisors (see below), whose sum is σ = 45358560. Its totient is φ = 6802848.

The previous prime is 20671613. The next prime is 20671621. The reversal of 20671614 is 41617602.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20671613) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5847 + ... + 8690.

It is an arithmetic number, because the mean of its divisors is an integer number (1889940).

Almost surely, 220671614 is an apocalyptic number.

20671614 is an abundant number, since it is smaller than the sum of its proper divisors (24686946).

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

20671614 is a wasteful number, since it uses less digits than its factorization.

20671614 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14624 (or 14621 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 27.

The square root of 20671614 is about 4546.6046672215. The cubic root of 20671614 is about 274.4467732007.

The spelling of 20671614 in words is "twenty million, six hundred seventy-one thousand, six hundred fourteen".

Divisors: 1 2 3 6 9 18 79 158 237 474 711 1422 14537 29074 43611 87222 130833 261666 1148423 2296846 3445269 6890538 10335807 20671614