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13227020 = 2251738903
BaseRepresentation
bin110010011101…
…010000001100
3220220000001122
4302131100030
511341231040
61151300112
7220266512
oct62352014
926800048
1013227020
117514724
12451a638
132981651
141a844b2
1512641b5
hexc9d40c

13227020 has 24 divisors (see below), whose sum is σ = 29411424. Its totient is φ = 4979456.

The previous prime is 13226921. The next prime is 13227023. The reversal of 13227020 is 2072231.

It is a Harshad number since it is a multiple of its sum of digits (17).

It is a self number, because there is not a number n which added to its sum of digits gives 13227020.

It is not an unprimeable number, because it can be changed into a prime (13227023) 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, 19112 + ... + 19791.

It is an arithmetic number, because the mean of its divisors is an integer number (1225476).

Almost surely, 213227020 is an apocalyptic number.

13227020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13227020 is an abundant number, since it is smaller than the sum of its proper divisors (16184404).

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

13227020 is a wasteful number, since it uses less digits than its factorization.

13227020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38929 (or 38927 counting only the distinct ones).

The product of its (nonzero) digits is 168, while the sum is 17.

The square root of 13227020 is about 3636.8970290620. The cubic root of 13227020 is about 236.4942957889.

Adding to 13227020 its reverse (2072231), we get a palindrome (15299251).

The spelling of 13227020 in words is "thirteen million, two hundred twenty-seven thousand, twenty".

Divisors: 1 2 4 5 10 17 20 34 68 85 170 340 38903 77806 155612 194515 389030 661351 778060 1322702 2645404 3306755 6613510 13227020