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20733060 = 2235345551
BaseRepresentation
bin100111100010…
…1110010000100
31110000100102010
41033011302010
520301424220
62020214220
7341141145
oct117056204
943010363
1020733060
1110781067
126b3a370
1343abcaa
142a79acc
151c481e0
hex13c5c84

20733060 has 24 divisors (see below), whose sum is σ = 58052736. Its totient is φ = 5528800.

The previous prime is 20733029. The next prime is 20733067. The reversal of 20733060 is 6033702.

It is not an unprimeable number, because it can be changed into a prime (20733067) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 172716 + ... + 172835.

It is an arithmetic number, because the mean of its divisors is an integer number (2418864).

Almost surely, 220733060 is an apocalyptic number.

20733060 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20733060 is an abundant number, since it is smaller than the sum of its proper divisors (37319676).

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

20733060 is a wasteful number, since it uses less digits than its factorization.

20733060 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 345563 (or 345561 counting only the distinct ones).

The product of its (nonzero) digits is 756, while the sum is 21.

The square root of 20733060 is about 4553.3570033548. The cubic root of 20733060 is about 274.7184335718.

Adding to 20733060 its reverse (6033702), we get a palindrome (26766762).

The spelling of 20733060 in words is "twenty million, seven hundred thirty-three thousand, sixty".

Divisors: 1 2 3 4 5 6 10 12 15 20 30 60 345551 691102 1036653 1382204 1727755 2073306 3455510 4146612 5183265 6911020 10366530 20733060