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12513430 = 254329101
BaseRepresentation
bin101111101111…
…000010010110
3212112202012101
4233233002112
511200412210
61124112314
7211235206
oct57570226
925482171
1012513430
117077586
12423569a
1327918c7
14193a406
151172a3a
hexbef096

12513430 has 16 divisors (see below), whose sum is σ = 23048784. Its totient is φ = 4888800.

The previous prime is 12513409. The next prime is 12513433. The reversal of 12513430 is 3431521.

It is a junction number, because it is equal to n+sod(n) for n = 12513398 and 12513407.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12513433) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14121 + ... + 14980.

It is an arithmetic number, because the mean of its divisors is an integer number (1440549).

Almost surely, 212513430 is an apocalyptic number.

12513430 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12513430 is a deficient number, since it is larger than the sum of its proper divisors (10535354).

12513430 is a wasteful number, since it uses less digits than its factorization.

12513430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29151.

The product of its (nonzero) digits is 360, while the sum is 19.

The square root of 12513430 is about 3537.4326848719. The cubic root of 12513430 is about 232.1625273161.

Adding to 12513430 its reverse (3431521), we get a palindrome (15944951).

The spelling of 12513430 in words is "twelve million, five hundred thirteen thousand, four hundred thirty".

Divisors: 1 2 5 10 43 86 215 430 29101 58202 145505 291010 1251343 2502686 6256715 12513430