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13430120 = 23511131233
BaseRepresentation
bin110011001110…
…110101101000
3221021022122212
4303032311220
511414230440
61155504252
7222103604
oct63166550
927238585
1013430120
117643280
1245b8088
132a22c22
141ad8504
1512a4465
hexcced68

13430120 has 64 divisors (see below), whose sum is σ = 33359040. Its totient is φ = 4825600.

The previous prime is 13430089. The next prime is 13430129. The reversal of 13430120 is 2103431.

It is a junction number, because it is equal to n+sod(n) for n = 13430095 and 13430104.

It is not an unprimeable number, because it can be changed into a prime (13430129) 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 15 ways as a sum of consecutive naturals, for example, 57524 + ... + 57756.

It is an arithmetic number, because the mean of its divisors is an integer number (521235).

Almost surely, 213430120 is an apocalyptic number.

13430120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13430120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16679520).

13430120 is an abundant number, since it is smaller than the sum of its proper divisors (19928920).

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

13430120 is a wasteful number, since it uses less digits than its factorization.

13430120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 386 (or 382 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 14.

The square root of 13430120 is about 3664.7128127590. The cubic root of 13430120 is about 237.6986039588.

Adding to 13430120 its reverse (2103431), we get a palindrome (15533551).

The spelling of 13430120 in words is "thirteen million, four hundred thirty thousand, one hundred twenty".

Divisors: 1 2 4 5 8 10 11 20 22 40 44 55 88 110 131 220 233 262 440 466 524 655 932 1048 1165 1310 1441 1864 2330 2563 2620 2882 4660 5126 5240 5764 7205 9320 10252 11528 12815 14410 20504 25630 28820 30523 51260 57640 61046 102520 122092 152615 244184 305230 335753 610460 671506 1220920 1343012 1678765 2686024 3357530 6715060 13430120