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13430420 = 2256591019
BaseRepresentation
bin110011001110…
…111010010100
3221021100001222
4303032322110
511414233140
61155505512
7222104513
oct63167224
927240058
1013430420
117643523
1245b8298
132a230c3
141ad867a
1512a45b5
hexccee94

13430420 has 24 divisors (see below), whose sum is σ = 28274400. Its totient is φ = 5358752.

The previous prime is 13430419. The next prime is 13430423. The reversal of 13430420 is 2403431.

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, 12671 + ... + 13689.

It is an arithmetic number, because the mean of its divisors is an integer number (1178100).

Almost surely, 213430420 is an apocalyptic number.

13430420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13430420 is an abundant number, since it is smaller than the sum of its proper divisors (14843980).

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

13430420 is a wasteful number, since it uses less digits than its factorization.

13430420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1687 (or 1685 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 17.

The square root of 13430420 is about 3664.7537434322. The cubic root of 13430420 is about 237.7003738375.

Adding to 13430420 its reverse (2403431), we get a palindrome (15833851).

The spelling of 13430420 in words is "thirteen million, four hundred thirty thousand, four hundred twenty".

Divisors: 1 2 4 5 10 20 659 1019 1318 2038 2636 3295 4076 5095 6590 10190 13180 20380 671521 1343042 2686084 3357605 6715210 13430420