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12520314 = 232695573
BaseRepresentation
bin101111110000…
…101101111010
3212120002122100
4233300231322
511201122224
61124204230
7211264242
oct57605572
925502570
1012520314
117081774
124239676
132794a91
14193cb22
151174ac9
hexbf0b7a

12520314 has 12 divisors (see below), whose sum is σ = 27127386. Its totient is φ = 4173432.

The previous prime is 12520309. The next prime is 12520337. The reversal of 12520314 is 41302521.

It can be written as a sum of positive squares in only one way, i.e., 12006225 + 514089 = 3465^2 + 717^2 .

It is a Harshad number since it is a multiple of its sum of digits (18), and also a Moran number because the ratio is a prime number: 695573 = 12520314 / (1 + 2 + 5 + 2 + 0 + 3 + 1 + 4).

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 347769 + ... + 347804.

Almost surely, 212520314 is an apocalyptic number.

12520314 is an abundant number, since it is smaller than the sum of its proper divisors (14607072).

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

12520314 is a wasteful number, since it uses less digits than its factorization.

12520314 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 695581 (or 695578 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 18.

The square root of 12520314 is about 3538.4055731360. The cubic root of 12520314 is about 232.2050926200.

Adding to 12520314 its reverse (41302521), we get a palindrome (53822835).

The spelling of 12520314 in words is "twelve million, five hundred twenty thousand, three hundred fourteen".

Divisors: 1 2 3 6 9 18 695573 1391146 2086719 4173438 6260157 12520314