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12486530 = 257296151
BaseRepresentation
bin101111101000…
…011110000010
3212111101022002
4233220132002
511144032110
61123344002
7211063610
oct57503602
925441262
1012486530
117059351
124222002
1327825a4
1419306b0
151169aa5
hexbe8782

12486530 has 32 divisors (see below), whose sum is σ = 26576640. Its totient is φ = 4132800.

The previous prime is 12486499. The next prime is 12486533. The reversal of 12486530 is 3568421.

12486530 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (29).

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 12486493 and 12486502.

It is not an unprimeable number, because it can be changed into a prime (12486533) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1046 + ... + 5105.

It is an arithmetic number, because the mean of its divisors is an integer number (830520).

Almost surely, 212486530 is an apocalyptic number.

12486530 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12486530 is an abundant number, since it is smaller than the sum of its proper divisors (14090110).

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

12486530 is a wasteful number, since it uses less digits than its factorization.

12486530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6194.

The product of its (nonzero) digits is 5760, while the sum is 29.

The square root of 12486530 is about 3533.6284467952. The cubic root of 12486530 is about 231.9960487833.

The spelling of 12486530 in words is "twelve million, four hundred eighty-six thousand, five hundred thirty".

Divisors: 1 2 5 7 10 14 29 35 58 70 145 203 290 406 1015 2030 6151 12302 30755 43057 61510 86114 178379 215285 356758 430570 891895 1248653 1783790 2497306 6243265 12486530