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13424430 = 235447481
BaseRepresentation
bin110011001101…
…011100101110
3221021000212010
4303031130232
511414040210
61155422050
7222051165
oct63153456
927230763
1013424430
117639a78
1245b4926
132a20466
141ad63dc
1512a2920
hexccd72e

13424430 has 16 divisors (see below), whose sum is σ = 32218704. Its totient is φ = 3579840.

The previous prime is 13424429. The next prime is 13424443. The reversal of 13424430 is 3442431.

It is a junction number, because it is equal to n+sod(n) for n = 13424397 and 13424406.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 223711 + ... + 223770.

It is an arithmetic number, because the mean of its divisors is an integer number (2013669).

Almost surely, 213424430 is an apocalyptic number.

13424430 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13424430 is an abundant number, since it is smaller than the sum of its proper divisors (18794274).

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

13424430 is a wasteful number, since it uses less digits than its factorization.

13424430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 447491.

The product of its (nonzero) digits is 1152, while the sum is 21.

The square root of 13424430 is about 3663.9364077451. The cubic root of 13424430 is about 237.6650302675.

Adding to 13424430 its reverse (3442431), we get a palindrome (16866861).

The spelling of 13424430 in words is "thirteen million, four hundred twenty-four thousand, four hundred thirty".

Divisors: 1 2 3 5 6 10 15 30 447481 894962 1342443 2237405 2684886 4474810 6712215 13424430