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12530350 = 252735801
BaseRepresentation
bin101111110011…
…001010101110
3212120121102001
4233303022232
511201432400
61124322514
7211335430
oct57631256
925517361
1012530350
117089268
12424343a
132799511
141942650
151177a6a
hexbf32ae

12530350 has 24 divisors (see below), whose sum is σ = 26636688. Its totient is φ = 4296000.

The previous prime is 12530347. The next prime is 12530351. The reversal of 12530350 is 5303521.

It is a super-2 number, since 2×125303502 = 314019342245000, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12530351) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 17551 + ... + 18250.

It is an arithmetic number, because the mean of its divisors is an integer number (1109862).

Almost surely, 212530350 is an apocalyptic number.

12530350 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12530350 is an abundant number, since it is smaller than the sum of its proper divisors (14106338).

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

12530350 is a wasteful number, since it uses less digits than its factorization.

12530350 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35820 (or 35815 counting only the distinct ones).

The product of its (nonzero) digits is 450, while the sum is 19.

The square root of 12530350 is about 3539.8234419248. The cubic root of 12530350 is about 232.2671194967.

Adding to 12530350 its reverse (5303521), we get a palindrome (17833871).

It can be divided in two parts, 12530 and 350, that added together give a triangular number (12880 = T160).

The spelling of 12530350 in words is "twelve million, five hundred thirty thousand, three hundred fifty".

Divisors: 1 2 5 7 10 14 25 35 50 70 175 350 35801 71602 179005 250607 358010 501214 895025 1253035 1790050 2506070 6265175 12530350