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12930224 = 2431131199
BaseRepresentation
bin110001010100…
…110010110000
3220022220221012
4301110302300
511302231344
61141050052
7214622306
oct61246260
926286835
1012930224
11733173a
1243b6928
1328a9528
141a08276
15120629e
hexc54cb0

12930224 has 40 divisors (see below), whose sum is σ = 26188800. Its totient is φ = 6177600.

The previous prime is 12930221. The next prime is 12930257. The reversal of 12930224 is 42203921.

It is a self number, because there is not a number n which added to its sum of digits gives 12930224.

It is not an unprimeable number, because it can be changed into a prime (12930221) 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, 64877 + ... + 65075.

It is an arithmetic number, because the mean of its divisors is an integer number (654720).

Almost surely, 212930224 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12930224, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13094400).

12930224 is an abundant number, since it is smaller than the sum of its proper divisors (13258576).

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

12930224 is a wasteful number, since it uses less digits than its factorization.

12930224 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 369 (or 363 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 23.

The square root of 12930224 is about 3595.8620663201. The cubic root of 12930224 is about 234.7120299413.

The spelling of 12930224 in words is "twelve million, nine hundred thirty thousand, two hundred twenty-four".

Divisors: 1 2 4 8 16 31 62 124 131 199 248 262 398 496 524 796 1048 1592 2096 3184 4061 6169 8122 12338 16244 24676 26069 32488 49352 52138 64976 98704 104276 208552 417104 808139 1616278 3232556 6465112 12930224