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13271430 = 2351492969
BaseRepresentation
bin110010101000…
…000110000110
3220222020222110
4302220012012
511344141210
61152241450
7220543134
oct62500606
926866873
1013271430
117545027
124540286
132998923
141a96754
151272420
hexca8186

13271430 has 32 divisors (see below), whose sum is σ = 32076000. Its totient is φ = 3514112.

The previous prime is 13271429. The next prime is 13271459. The reversal of 13271430 is 3417231.

It is a super-2 number, since 2×132714302 = 352261708489800, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 13271397 and 13271406.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2986 + ... + 5954.

It is an arithmetic number, because the mean of its divisors is an integer number (1002375).

Almost surely, 213271430 is an apocalyptic number.

13271430 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13271430 is an abundant number, since it is smaller than the sum of its proper divisors (18804570).

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

13271430 is a wasteful number, since it uses less digits than its factorization.

13271430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3128.

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

The square root of 13271430 is about 3642.9973922582. The cubic root of 13271430 is about 236.7586783229.

Adding to 13271430 its reverse (3417231), we get a palindrome (16688661).

The spelling of 13271430 in words is "thirteen million, two hundred seventy-one thousand, four hundred thirty".

Divisors: 1 2 3 5 6 10 15 30 149 298 447 745 894 1490 2235 2969 4470 5938 8907 14845 17814 29690 44535 89070 442381 884762 1327143 2211905 2654286 4423810 6635715 13271430