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12015130 = 251201513
BaseRepresentation
bin101101110101…
…011000011010
3211121102122211
4231311120122
511033441010
61105305334
7204061351
oct55653032
924542584
1012015130
116867166
12403524a
132648b5a
14184a998
1510c508a
hexb7561a

12015130 has 8 divisors (see below), whose sum is σ = 21627252. Its totient is φ = 4806048.

The previous prime is 12015097. The next prime is 12015139. The reversal of 12015130 is 3151021.

It can be written as a sum of positive squares in 2 ways, for example, as 11512449 + 502681 = 3393^2 + 709^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 12015130.

It is not an unprimeable number, because it can be changed into a prime (12015139) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 600747 + ... + 600766.

Almost surely, 212015130 is an apocalyptic number.

12015130 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12015130 is a deficient number, since it is larger than the sum of its proper divisors (9612122).

12015130 is a wasteful number, since it uses less digits than its factorization.

12015130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1201520.

The product of its (nonzero) digits is 30, while the sum is 13.

The square root of 12015130 is about 3466.2847546040. The cubic root of 12015130 is about 229.0390276916.

Adding to 12015130 its reverse (3151021), we get a palindrome (15166151).

The spelling of 12015130 in words is "twelve million, fifteen thousand, one hundred thirty".

Divisors: 1 2 5 10 1201513 2403026 6007565 12015130