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13434220 = 2251374903
BaseRepresentation
bin110011001111…
…110101101100
3221021112021201
4303033311230
511414343340
61155535244
7222121552
oct63176554
927245251
1013434220
117646368
1245ba524
132a24a57
141ad9bd2
1512a579a
hexccfd6c

13434220 has 24 divisors (see below), whose sum is σ = 28423584. Its totient is φ = 5333376.

The previous prime is 13434217. The next prime is 13434229. The reversal of 13434220 is 2243431.

It is not an unprimeable number, because it can be changed into a prime (13434229) 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, 289 + ... + 5191.

It is an arithmetic number, because the mean of its divisors is an integer number (1184316).

Almost surely, 213434220 is an apocalyptic number.

13434220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13434220 is an abundant number, since it is smaller than the sum of its proper divisors (14989364).

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

13434220 is a wasteful number, since it uses less digits than its factorization.

13434220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5049 (or 5047 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 19.

The square root of 13434220 is about 3665.2721590627. The cubic root of 13434220 is about 237.7227900202.

Adding to 13434220 its reverse (2243431), we get a palindrome (15677651).

The spelling of 13434220 in words is "thirteen million, four hundred thirty-four thousand, two hundred twenty".

Divisors: 1 2 4 5 10 20 137 274 548 685 1370 2740 4903 9806 19612 24515 49030 98060 671711 1343422 2686844 3358555 6717110 13434220