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13214020 = 2254631427
BaseRepresentation
bin110010011010…
…000101000100
3220212100020011
4302122011010
511340322040
61151120004
7220213561
oct62320504
926770204
1013214020
117505986
124513004
132978761
141a7d868
1512603ea
hexc9a144

13214020 has 24 divisors (see below), whose sum is σ = 27828864. Its totient is φ = 5270496.

The previous prime is 13214017. The next prime is 13214021. The reversal of 13214020 is 2041231.

It is a super-2 number, since 2×132140202 = 349220649120800, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (13214021) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8547 + ... + 9973.

It is an arithmetic number, because the mean of its divisors is an integer number (1159536).

Almost surely, 213214020 is an apocalyptic number.

13214020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13214020 is an abundant number, since it is smaller than the sum of its proper divisors (14614844).

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

13214020 is a wasteful number, since it uses less digits than its factorization.

13214020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1899 (or 1897 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 13.

The square root of 13214020 is about 3635.1093518627. The cubic root of 13214020 is about 236.4167919718.

Adding to 13214020 its reverse (2041231), we get a palindrome (15255251).

The spelling of 13214020 in words is "thirteen million, two hundred fourteen thousand, twenty".

Divisors: 1 2 4 5 10 20 463 926 1427 1852 2315 2854 4630 5708 7135 9260 14270 28540 660701 1321402 2642804 3303505 6607010 13214020