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12550513 = 83891699
BaseRepresentation
bin101111111000…
…000101110001
3212121122001211
4233320011301
511203104023
61125000121
7211451263
oct57700561
925548054
1012550513
1170a2428
124253041
1327a5751
141949b33
15117da0d
hexbf8171

12550513 has 8 divisors (see below), whose sum is σ = 12852000. Its totient is φ = 12252768.

The previous prime is 12550501. The next prime is 12550519. The reversal of 12550513 is 31505521.

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

It is a cyclic number.

It is not a de Polignac number, because 12550513 - 25 = 12550481 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12550519) 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 7 ways as a sum of consecutive naturals, for example, 6538 + ... + 8236.

It is an arithmetic number, because the mean of its divisors is an integer number (1606500).

Almost surely, 212550513 is an apocalyptic number.

It is an amenable number.

12550513 is a deficient number, since it is larger than the sum of its proper divisors (301487).

12550513 is an equidigital number, since it uses as much as digits as its factorization.

12550513 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1871.

The product of its (nonzero) digits is 750, while the sum is 22.

The square root of 12550513 is about 3542.6703205351. The cubic root of 12550513 is about 232.3916356304.

The spelling of 12550513 in words is "twelve million, five hundred fifty thousand, five hundred thirteen".

Divisors: 1 83 89 1699 7387 141017 151211 12550513