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13430424 = 233779943
BaseRepresentation
bin110011001110…
…111010011000
3221021100002010
4303032322120
511414233144
61155505520
7222104520
oct63167230
927240063
1013430424
117643527
1245b82a0
132a230c7
141ad8680
1512a45b9
hexccee98

13430424 has 32 divisors (see below), whose sum is σ = 38373120. Its totient is φ = 3837216.

The previous prime is 13430423. The next prime is 13430429. The reversal of 13430424 is 42403431.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a self number, because there is not a number n which added to its sum of digits gives 13430424.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13430423) 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 7 ways as a sum of consecutive naturals, for example, 39804 + ... + 40139.

It is an arithmetic number, because the mean of its divisors is an integer number (1199160).

Almost surely, 213430424 is an apocalyptic number.

13430424 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

13430424 is an abundant number, since it is smaller than the sum of its proper divisors (24942696).

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

13430424 is a wasteful number, since it uses less digits than its factorization.

13430424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79959 (or 79955 counting only the distinct ones).

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

The square root of 13430424 is about 3664.7542891714. The cubic root of 13430424 is about 237.7003974357.

Adding to 13430424 its reverse (42403431), we get a palindrome (55833855).

The spelling of 13430424 in words is "thirteen million, four hundred thirty thousand, four hundred twenty-four".

Divisors: 1 2 3 4 6 7 8 12 14 21 24 28 42 56 84 168 79943 159886 239829 319772 479658 559601 639544 959316 1119202 1678803 1918632 2238404 3357606 4476808 6715212 13430424