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13127430 = 2352979191
BaseRepresentation
bin110010000100…
…111100000110
3220200221110010
4302010330012
511330034210
61145211050
7216403251
oct62047406
926627403
1013127430
117456918
124490a86
132948214
141a5a098
151244920
hexc84f06

13127430 has 64 divisors (see below), whose sum is σ = 33177600. Its totient is φ = 3319680.

The previous prime is 13127407. The next prime is 13127431. The reversal of 13127430 is 3472131.

It is a junction number, because it is equal to n+sod(n) for n = 13127397 and 13127406.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13127431) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 68635 + ... + 68825.

It is an arithmetic number, because the mean of its divisors is an integer number (518400).

Almost surely, 213127430 is an apocalyptic number.

13127430 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 13127430, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16588800).

13127430 is an abundant number, since it is smaller than the sum of its proper divisors (20050170).

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

13127430 is a wasteful number, since it uses less digits than its factorization.

13127430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 309.

The product of its (nonzero) digits is 504, while the sum is 21.

The square root of 13127430 is about 3623.1795428877. The cubic root of 13127430 is about 235.8992555732.

Adding to 13127430 its reverse (3472131), we get a palindrome (16599561).

The spelling of 13127430 in words is "thirteen million, one hundred twenty-seven thousand, four hundred thirty".

Divisors: 1 2 3 5 6 10 15 29 30 58 79 87 145 158 174 191 237 290 382 395 435 474 573 790 870 955 1146 1185 1910 2291 2370 2865 4582 5539 5730 6873 11078 11455 13746 15089 16617 22910 27695 30178 33234 34365 45267 55390 68730 75445 83085 90534 150890 166170 226335 437581 452670 875162 1312743 2187905 2625486 4375810 6563715 13127430