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5212509 = 310117203
BaseRepresentation
bin10011111000100101011101
3100210211012220
4103320211131
52313300014
6303415553
762206551
oct23704535
910724186
105212509
112a40265
1218b45b9
131106733
14999861
156ce6a9
hex4f895d

5212509 has 8 divisors (see below), whose sum is σ = 7019232. Its totient is φ = 3440400.

The previous prime is 5212507. The next prime is 5212541. The reversal of 5212509 is 9052125.

5212509 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 5212509 - 21 = 5212507 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is a nialpdrome in base 14.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5212507) 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, 8299 + ... + 8904.

It is an arithmetic number, because the mean of its divisors is an integer number (877404).

Almost surely, 25212509 is an apocalyptic number.

It is an amenable number.

5212509 is a deficient number, since it is larger than the sum of its proper divisors (1806723).

5212509 is a wasteful number, since it uses less digits than its factorization.

5212509 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17307.

The product of its (nonzero) digits is 900, while the sum is 24.

The square root of 5212509 is about 2283.0919823783. The cubic root of 5212509 is about 173.3866301424.

It can be divided in two parts, 52 and 12509, that added together give a triangular number (12561 = T158).

The spelling of 5212509 in words is "five million, two hundred twelve thousand, five hundred nine".

Divisors: 1 3 101 303 17203 51609 1737503 5212509