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13034220 = 22351091993
BaseRepresentation
bin110001101110…
…001011101100
3220112012120220
4301232023230
511314043340
61143211340
7215534433
oct61561354
926465526
1013034220
1173a2891
124446b50
132914974
141a3411a
151226ed0
hexc6e2ec

13034220 has 48 divisors (see below), whose sum is σ = 36849120. Its totient is φ = 3442176.

The previous prime is 13034201. The next prime is 13034227. The reversal of 13034220 is 2243031.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 13034220.

It is not an unprimeable number, because it can be changed into a prime (13034227) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5544 + ... + 7536.

It is an arithmetic number, because the mean of its divisors is an integer number (767690).

Almost surely, 213034220 is an apocalyptic number.

13034220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13034220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18424560).

13034220 is an abundant number, since it is smaller than the sum of its proper divisors (23814900).

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

13034220 is a wasteful number, since it uses less digits than its factorization.

13034220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2114 (or 2112 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 15.

The square root of 13034220 is about 3610.2936168683. The cubic root of 13034220 is about 235.3396025547.

Adding to 13034220 its reverse (2243031), we get a palindrome (15277251).

The spelling of 13034220 in words is "thirteen million, thirty-four thousand, two hundred twenty".

Divisors: 1 2 3 4 5 6 10 12 15 20 30 60 109 218 327 436 545 654 1090 1308 1635 1993 2180 3270 3986 5979 6540 7972 9965 11958 19930 23916 29895 39860 59790 119580 217237 434474 651711 868948 1086185 1303422 2172370 2606844 3258555 4344740 6517110 13034220