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20608000 = 21053723
BaseRepresentation
bin100111010011…
…1010000000000
31102202222212021
41032213100000
520233424000
62013411224
7340110430
oct116472000
942688767
1020608000
11106a6106
126a99b14
1343670aa
142a462c0
151c2111a
hex13a7400

20608000 has 176 divisors, whose sum is σ = 61311744. Its totient is φ = 6758400.

The previous prime is 20607991. The next prime is 20608031. The reversal of 20608000 is 80602.

It is a Harshad number since it is a multiple of its sum of digits (16).

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, 895989 + ... + 896011.

Almost surely, 220608000 is an apocalyptic number.

20608000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20608000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (30655872).

20608000 is an abundant number, since it is smaller than the sum of its proper divisors (40703744).

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

20608000 is an equidigital number, since it uses as much as digits as its factorization.

20608000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65 (or 37 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 16.

The square root of 20608000 is about 4539.6035069156. The cubic root of 20608000 is about 274.1649600733.

Adding to 20608000 its reverse (80602), we get a palindrome (20688602).

The spelling of 20608000 in words is "twenty million, six hundred eight thousand".