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12650534 = 213486559
BaseRepresentation
bin110000010000…
…100000100110
3212210201021022
4300100200212
511214304114
61131051142
7212346011
oct60204046
925721238
1012650534
117160596
1242a0ab2
13280c130
141974378
15119d48e
hexc10826

12650534 has 8 divisors (see below), whose sum is σ = 20435520. Its totient is φ = 5838696.

The previous prime is 12650513. The next prime is 12650537. The reversal of 12650534 is 43505621.

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

It is a Harshad number since it is a multiple of its sum of digits (26), and also a Moran number because the ratio is a prime number: 486559 = 12650534 / (1 + 2 + 6 + 5 + 0 + 5 + 3 + 4).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12650537) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 243254 + ... + 243305.

It is an arithmetic number, because the mean of its divisors is an integer number (2554440).

Almost surely, 212650534 is an apocalyptic number.

12650534 is a deficient number, since it is larger than the sum of its proper divisors (7784986).

12650534 is a wasteful number, since it uses less digits than its factorization.

12650534 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 486574.

The product of its (nonzero) digits is 3600, while the sum is 26.

The square root of 12650534 is about 3556.7589178914. The cubic root of 12650534 is about 233.0073493233.

The spelling of 12650534 in words is "twelve million, six hundred fifty thousand, five hundred thirty-four".

Divisors: 1 2 13 26 486559 973118 6325267 12650534