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2725289 = 7617631
BaseRepresentation
bin1010011001010110101001
312010110101122
422121112221
51144202124
6134225025
732110310
oct12312651
95113348
102725289
1115a1606
12ab5175
137455c8
1450d277
1538c75e
hex2995a9

2725289 has 8 divisors (see below), whose sum is σ = 3124608. Its totient is φ = 2328480.

The previous prime is 2725279. The next prime is 2725337. The reversal of 2725289 is 9825272.

2725289 is digitally balanced in base 2, 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 2725289 - 212 = 2721193 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2725259) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4004 + ... + 4634.

It is an arithmetic number, because the mean of its divisors is an integer number (390576).

22725289 is an apocalyptic number.

It is an amenable number.

2725289 is a deficient number, since it is larger than the sum of its proper divisors (399319).

2725289 is an equidigital number, since it uses as much as digits as its factorization.

2725289 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1255.

The product of its digits is 20160, while the sum is 35.

The square root of 2725289 is about 1650.8449351771. The cubic root of 2725289 is about 139.6810596737.

The spelling of 2725289 in words is "two million, seven hundred twenty-five thousand, two hundred eighty-nine".

Divisors: 1 7 617 631 4319 4417 389327 2725289