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26630000 = 24542663
BaseRepresentation
bin110010110010…
…1011101110000
31212002221111022
41211211131300
523304130000
62350435012
7442231325
oct145453560
955087438
1026630000
1114039571
128b02a68
1356950c7
143772b4c
152510585
hex1965770

26630000 has 50 divisors (see below), whose sum is σ = 64498104. Its totient is φ = 10648000.

The previous prime is 26629979. The next prime is 26630057. The reversal of 26630000 is 3662.

It is a tau number, because it is divible by the number of its divisors (50).

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 9 ways as a sum of consecutive naturals, for example, 8669 + ... + 11331.

Almost surely, 226630000 is an apocalyptic number.

26630000 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 26630000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (32249052).

26630000 is an abundant number, since it is smaller than the sum of its proper divisors (37868104).

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

26630000 is an equidigital number, since it uses as much as digits as its factorization.

26630000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2691 (or 2670 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 17.

The square root of 26630000 is about 5160.4263389763. The cubic root of 26630000 is about 298.6233218170.

Adding to 26630000 its reverse (3662), we get a palindrome (26633662).

The spelling of 26630000 in words is "twenty-six million, six hundred thirty thousand".

Divisors: 1 2 4 5 8 10 16 20 25 40 50 80 100 125 200 250 400 500 625 1000 1250 2000 2500 2663 5000 5326 10000 10652 13315 21304 26630 42608 53260 66575 106520 133150 213040 266300 332875 532600 665750 1065200 1331500 1664375 2663000 3328750 5326000 6657500 13315000 26630000