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20246716 = 22723149211
BaseRepresentation
bin100110100111…
…1000010111100
31102002122021101
41031033002330
520140343331
62001542444
7334044220
oct115170274
942078241
1020246716
1110479726
126944a24
13426b809
142990780
151b9e061
hex134f0bc

20246716 has 48 divisors (see below), whose sum is σ = 42739200. Its totient is φ = 8205120.

The previous prime is 20246701. The next prime is 20246729. The reversal of 20246716 is 61764202.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 95851 + ... + 96061.

It is an arithmetic number, because the mean of its divisors is an integer number (890400).

Almost surely, 220246716 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20246716, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (21369600).

20246716 is an abundant number, since it is smaller than the sum of its proper divisors (22492484).

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

20246716 is a wasteful number, since it uses less digits than its factorization.

20246716 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 394 (or 392 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 28.

The square root of 20246716 is about 4499.6350963161. The cubic root of 20246716 is about 272.5533537479.

The spelling of 20246716 in words is "twenty million, two hundred forty-six thousand, seven hundred sixteen".

Divisors: 1 2 4 7 14 23 28 46 92 149 161 211 298 322 422 596 644 844 1043 1477 2086 2954 3427 4172 4853 5908 6854 9706 13708 19412 23989 31439 33971 47978 62878 67942 95956 125756 135884 220073 440146 723097 880292 1446194 2892388 5061679 10123358 20246716