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13050530 = 251968687
BaseRepresentation
bin110001110010…
…001010100010
3220120000221222
4301302022202
511320104110
61143415042
7215633123
oct61621242
926500858
1013050530
117404069
124454482
13291c20c
141a3a04a
15122bc55
hexc722a2

13050530 has 16 divisors (see below), whose sum is σ = 24727680. Its totient is φ = 4945392.

The previous prime is 13050503. The next prime is 13050533. The reversal of 13050530 is 3505031.

It is a junction number, because it is equal to n+sod(n) for n = 13050499 and 13050508.

It is not an unprimeable number, because it can be changed into a prime (13050533) 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, 34154 + ... + 34533.

It is an arithmetic number, because the mean of its divisors is an integer number (1545480).

Almost surely, 213050530 is an apocalyptic number.

13050530 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13050530 is a deficient number, since it is larger than the sum of its proper divisors (11677150).

13050530 is a wasteful number, since it uses less digits than its factorization.

13050530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68713.

The product of its (nonzero) digits is 225, while the sum is 17.

The square root of 13050530 is about 3612.5517297334. The cubic root of 13050530 is about 235.4377234757.

Adding to 13050530 its reverse (3505031), we get a palindrome (16555561).

The spelling of 13050530 in words is "thirteen million, fifty thousand, five hundred thirty".

Divisors: 1 2 5 10 19 38 95 190 68687 137374 343435 686870 1305053 2610106 6525265 13050530