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13411818 = 234711827
BaseRepresentation
bin110011001010…
…010111101010
3221020101120000
4303022113222
511413134233
61155243430
7221666340
oct63122752
927211500
1013411818
117630552
1245a9576
132a177b4
141ad1990
15129dd13
hexcca5ea

13411818 has 40 divisors (see below), whose sum is σ = 34348512. Its totient is φ = 3831624.

The previous prime is 13411817. The next prime is 13411823. The reversal of 13411818 is 81811431.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 13411791 and 13411800.

It is not an unprimeable number, because it can be changed into a prime (13411813) 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 19 ways as a sum of consecutive naturals, for example, 4780 + ... + 7047.

Almost surely, 213411818 is an apocalyptic number.

13411818 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

13411818 is an abundant number, since it is smaller than the sum of its proper divisors (20936694).

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

13411818 is a wasteful number, since it uses less digits than its factorization.

13411818 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11848 (or 11839 counting only the distinct ones).

The product of its digits is 768, while the sum is 27.

The square root of 13411818 is about 3662.2149035795. The cubic root of 13411818 is about 237.5905796694.

The spelling of 13411818 in words is "thirteen million, four hundred eleven thousand, eight hundred eighteen".

Divisors: 1 2 3 6 7 9 14 18 21 27 42 54 63 81 126 162 189 378 567 1134 11827 23654 35481 70962 82789 106443 165578 212886 248367 319329 496734 638658 745101 957987 1490202 1915974 2235303 4470606 6705909 13411818