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13212030 = 23513191783
BaseRepresentation
bin110010011001…
…100101111110
3220212020111110
4302121211332
511340241110
61151102450
7220205016
oct62314576
926766443
1013212030
117504437
124511a26
132977890
141a7cc46
15125ea20
hexc9997e

13212030 has 64 divisors (see below), whose sum is σ = 35965440. Its totient is φ = 3079296.

The previous prime is 13212013. The next prime is 13212053. The reversal of 13212030 is 3021231.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 13211997 and 13212015.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6519 + ... + 8301.

It is an arithmetic number, because the mean of its divisors is an integer number (561960).

Almost surely, 213212030 is an apocalyptic number.

13212030 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 13212030, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17982720).

13212030 is an abundant number, since it is smaller than the sum of its proper divisors (22753410).

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

13212030 is a wasteful number, since it uses less digits than its factorization.

13212030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1825.

The product of its (nonzero) digits is 36, while the sum is 12.

The square root of 13212030 is about 3634.8356221430. The cubic root of 13212030 is about 236.4049234404.

Adding to 13212030 its reverse (3021231), we get a palindrome (16233261).

The spelling of 13212030 in words is "thirteen million, two hundred twelve thousand, thirty".

Divisors: 1 2 3 5 6 10 13 15 19 26 30 38 39 57 65 78 95 114 130 190 195 247 285 390 494 570 741 1235 1482 1783 2470 3566 3705 5349 7410 8915 10698 17830 23179 26745 33877 46358 53490 67754 69537 101631 115895 139074 169385 203262 231790 338770 347685 440401 508155 695370 880802 1016310 1321203 2202005 2642406 4404010 6606015 13212030