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20714894 = 2371571783
BaseRepresentation
bin100111100000…
…1010110001110
31102222102111022
41033001112032
520300334034
62015554142
7341034164
oct117012616
942872438
1020714894
1110769452
126b2b952
1343a3945
142a73234
151c42b2e
hex13c158e

20714894 has 16 divisors (see below), whose sum is σ = 32133408. Its totient is φ = 10007712.

The previous prime is 20714893. The next prime is 20714917. The reversal of 20714894 is 49841702.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20714893) 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, 10727 + ... + 12509.

It is an arithmetic number, because the mean of its divisors is an integer number (2008338).

Almost surely, 220714894 is an apocalyptic number.

20714894 is a deficient number, since it is larger than the sum of its proper divisors (11418514).

20714894 is a wasteful number, since it uses less digits than its factorization.

20714894 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1979.

The product of its (nonzero) digits is 16128, while the sum is 35.

The square root of 20714894 is about 4551.3617742386. The cubic root of 20714894 is about 274.6381753865.

The spelling of 20714894 in words is "twenty million, seven hundred fourteen thousand, eight hundred ninety-four".

Divisors: 1 2 37 74 157 314 1783 3566 5809 11618 65971 131942 279931 559862 10357447 20714894