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13134020 = 225656701
BaseRepresentation
bin110010000110…
…100011000100
3220201021111012
4302012203010
511330242040
61145301352
7216431414
oct62064304
926637435
1013134020
117460869
124494858
13294b213
141a5c644
151246865
hexc868c4

13134020 has 12 divisors (see below), whose sum is σ = 27581484. Its totient is φ = 5253600.

The previous prime is 13134019. The next prime is 13134029. The reversal of 13134020 is 2043131.

It can be written as a sum of positive squares in 2 ways, for example, as 3904576 + 9229444 = 1976^2 + 3038^2 .

It is a junction number, because it is equal to n+sod(n) for n = 13133986 and 13134004.

It is not an unprimeable number, because it can be changed into a prime (13134029) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 328331 + ... + 328370.

It is an arithmetic number, because the mean of its divisors is an integer number (2298457).

Almost surely, 213134020 is an apocalyptic number.

13134020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13134020 is an abundant number, since it is smaller than the sum of its proper divisors (14447464).

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

13134020 is a wasteful number, since it uses less digits than its factorization.

13134020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 656710 (or 656708 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 14.

The square root of 13134020 is about 3624.0888510079. The cubic root of 13134020 is about 235.9387229590.

Adding to 13134020 its reverse (2043131), we get a palindrome (15177151).

The spelling of 13134020 in words is "thirteen million, one hundred thirty-four thousand, twenty".

Divisors: 1 2 4 5 10 20 656701 1313402 2626804 3283505 6567010 13134020