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20263060 = 2251013153
BaseRepresentation
bin100110101001…
…1000010010100
31102010110200201
41031103002110
520141404220
62002150244
7334142656
oct115230224
942113621
1020263060
111048aa34
126952384
13427609c
1429966d6
151ba3d0a
hex1353094

20263060 has 12 divisors (see below), whose sum is σ = 42552468. Its totient is φ = 8105216.

The previous prime is 20263049. The next prime is 20263073. The reversal of 20263060 is 6036202.

It can be written as a sum of positive squares in 2 ways, for example, as 9412624 + 10850436 = 3068^2 + 3294^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 506557 + ... + 506596.

It is an arithmetic number, because the mean of its divisors is an integer number (3546039).

Almost surely, 220263060 is an apocalyptic number.

20263060 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20263060 is an abundant number, since it is smaller than the sum of its proper divisors (22289408).

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

20263060 is a wasteful number, since it uses less digits than its factorization.

20263060 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1013162 (or 1013160 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 19.

The square root of 20263060 is about 4501.4508772173. The cubic root of 20263060 is about 272.6266728630.

Adding to 20263060 its reverse (6036202), we get a palindrome (26299262).

The spelling of 20263060 in words is "twenty million, two hundred sixty-three thousand, sixty".

Divisors: 1 2 4 5 10 20 1013153 2026306 4052612 5065765 10131530 20263060