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12530435 = 54771751
BaseRepresentation
bin101111110011…
…001100000011
3212120121112012
4233303030003
511201433220
61124323135
7211335611
oct57631403
925517465
1012530435
117089335
1242434ab
132799578
1419426b1
151177ac5
hexbf3303

12530435 has 16 divisors (see below), whose sum is σ = 15593472. Its totient is φ = 9660000.

The previous prime is 12530429. The next prime is 12530459. The reversal of 12530435 is 53403521.

It is not a de Polignac number, because 12530435 - 220 = 11481859 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 12530435.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 16310 + ... + 17060.

It is an arithmetic number, because the mean of its divisors is an integer number (974592).

Almost surely, 212530435 is an apocalyptic number.

12530435 is a deficient number, since it is larger than the sum of its proper divisors (3063037).

12530435 is an equidigital number, since it uses as much as digits as its factorization.

12530435 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 874.

The product of its (nonzero) digits is 1800, while the sum is 23.

The square root of 12530435 is about 3539.8354481529. The cubic root of 12530435 is about 232.2676446925.

Adding to 12530435 its reverse (53403521), we get a palindrome (65933956).

The spelling of 12530435 in words is "twelve million, five hundred thirty thousand, four hundred thirty-five".

Divisors: 1 5 47 71 235 355 751 3337 3755 16685 35297 53321 176485 266605 2506087 12530435