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20614392 = 2333195023
BaseRepresentation
bin100111010100…
…0110011111000
31102210022122000
41032220303320
520234130032
62013501000
7340135161
oct116506370
942708560
1020614392
11106aa997
126aa1760
134369c86
142a48768
151c22e7c
hex13a8cf8

20614392 has 64 divisors (see below), whose sum is σ = 60288000. Its totient is φ = 6508512.

The previous prime is 20614361. The next prime is 20614393. The reversal of 20614392 is 29341602.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20614393) by changing a digit.

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, 1593 + ... + 6615.

It is an arithmetic number, because the mean of its divisors is an integer number (942000).

Almost surely, 220614392 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 20614392, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (30144000).

20614392 is an abundant number, since it is smaller than the sum of its proper divisors (39673608).

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

20614392 is a wasteful number, since it uses less digits than its factorization.

20614392 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5057 (or 5047 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 27.

The square root of 20614392 is about 4540.3074785746. The cubic root of 20614392 is about 274.1933031321.

Adding to 20614392 its reverse (29341602), we get a palindrome (49955994).

The spelling of 20614392 in words is "twenty million, six hundred fourteen thousand, three hundred ninety-two".

Divisors: 1 2 3 4 6 8 9 12 18 19 24 27 36 38 54 57 72 76 108 114 152 171 216 228 342 456 513 684 1026 1368 2052 4104 5023 10046 15069 20092 30138 40184 45207 60276 90414 95437 120552 135621 180828 190874 271242 286311 361656 381748 542484 572622 763496 858933 1084968 1145244 1717866 2290488 2576799 3435732 5153598 6871464 10307196 20614392